Difference between revisions of "Timeline of Twitter"

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{{Attribute English Wikipedia|original-exists=no}}
 
{{Attribute English Wikipedia|original-exists=no}}
  
This is a timeline of microblogging service [[Twitter]].
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This is a timeline of microblogging service [[wikipedia:Twitter|Twitter]].
  
 
==Big picture==
 
==Big picture==
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! Time period !! Key developments at Twitter
 
! Time period !! Key developments at Twitter
 
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| March 2006{{snd}}March 2007 || Twitter launches as a product of parent company [[Odeo]]. It grows slowly until March 2007, where usage grows dramatically after it is showcased at the [[South by Southwest Interactive]] (SXSW) conference.
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| March 2006{{snd}}March 2007 || Twitter launches as a product of parent company [[wikipedia:Odeo|Odeo]]. It grows slowly until March 2007, where usage grows dramatically after it is showcased at the [[wikipedia:South by Southwest Interactive|South by Southwest Interactive]] (SXSW) conference.
 
|-
 
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| April 2007{{snd}}October 2008 || Twitter grows rapidly under CEO [[Jack Dorsey]], completing two funding rounds and launching official support for [[hashtag]]s.
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| April 2007{{snd}}October 2008 || Twitter grows rapidly under CEO [[wikipedia:Jack Dorsey|Jack Dorsey]], completing two funding rounds and launching official support for [[wikipedia:hashtag|hashtag]]s.
 
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| October 2008{{snd}}October 2010 || Jack Dorsey steps down, and [[Evan Williams (Internet entrepreneur)|Evan Williams]] takes over as CEO. Twitter raises money, gets celebrity endorsements and publicity, and continues to grow rapidly. The first tweet from space occurs during this period. Twitter also announces that it will start allowing for advertising in the form of ''promoted tweets'' – "ordinary tweets that businesses and individuals want to highlight to a wider group of users."
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| October 2008{{snd}}October 2010 || Jack Dorsey steps down, and [[wikipedia:Evan Williams (Internet entrepreneur)|Evan Williams]] takes over as CEO. Twitter raises money, gets celebrity endorsements and publicity, and continues to grow rapidly. The first tweet from space occurs during this period. Twitter also announces that it will start allowing for advertising in the form of ''promoted tweets'' – "ordinary tweets that businesses and individuals want to highlight to a wider group of users."
 
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|-
| October 2010{{snd}}October 2013 || Evan Williams steps down as CEO, and [[Dick Costolo]] takes over. The company starts making acquisitions, closes a $800 million Series G, puts its advertising plans to fruitions, launches site redesigns, and continues to grow.
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| October 2010{{snd}}October 2013 || Evan Williams steps down as CEO, and [[wikipedia:Dick Costolo|Dick Costolo]] takes over. The company starts making acquisitions, closes a $800 million Series G, puts its advertising plans to fruitions, launches site redesigns, and continues to grow.
 
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| October 2013{{snd}}present || Twitter announces plans and files relevant legal documents in October 2013 so as to go public. In November 2013, it has its [[initial public offering]]. Post-IPO, the company's pace of acquisitions increases dramatically.
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| October 2013{{snd}}present || Twitter announces plans and files relevant legal documents in October 2013 so as to go public. In November 2013, it has its [[wikipedia:initial public offering|initial public offering]]. Post-IPO, the company's pace of acquisitions increases dramatically.
 
|-
 
|-
 
| November 2014{{snd}}present || With the launch of features such as Instant Timeline, While You Were Away, Quality Filter, Curator, and Moments, Twitter diversifies beyond just being a reverse chronological stream of tweets by people you already follow. Rather, it seeks to more intelligently help people with the on-boarding process as well as helps seasoned users navigate through what might otherwise be a very messy feed.
 
| November 2014{{snd}}present || With the launch of features such as Instant Timeline, While You Were Away, Quality Filter, Curator, and Moments, Twitter diversifies beyond just being a reverse chronological stream of tweets by people you already follow. Rather, it seeks to more intelligently help people with the on-boarding process as well as helps seasoned users navigate through what might otherwise be a very messy feed.
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! Year !! Month and date !! Event type !! Event
 
! Year !! Month and date !! Event type !! Event
 
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| 2004 || November || Prelude || [[Odeo]], Twitter's parent company, is started.
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| 2004 || November || Prelude || [[wikipedia:Odeo|Odeo]], Twitter's parent company, is started.
 
|-
 
|-
 
| 2005 || February || Prelude || Odeo's podcasting service is released, with very little public response.
 
| 2005 || February || Prelude || Odeo's podcasting service is released, with very little public response.
 
|-
 
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| 2006 || February 26–27 || Creation || [[Jack Dorsey]], [[Noah Glass]], [[Evan Williams (Internet entrepreneur)|Evan Williams]] and [[Biz Stone]] discuss the idea of using text messaging to share statuses, and decide to work on the project. The original idea is attributed to [[Jack Dorsey]], and called the ''status '' concept.<ref>{{cite book|title = ''Hatching Twitter''|last = Bilton|first = Nick}}, Chapter II, Section ''Status'', Pages 55-58</ref>
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| 2006 || February 26–27 || Creation || [[wikipedia:Jack Dorsey|Jack Dorsey]], [[wikipedia:Noah Glass|Noah Glass]], [[wikipedia:Evan Williams (Internet entrepreneur)|Evan Williams]] and [[wikipedia:Biz Stone|Biz Stone]] discuss the idea of using text messaging to share statuses, and decide to work on the project. The original idea is attributed to [[wikipedia:Jack Dorsey|Jack Dorsey]], and called the ''status '' concept.<ref>{{cite book|title = ''Hatching Twitter''|last = Bilton|first = Nick}}, Chapter II, Section ''Status'', Pages 55-58</ref>
 
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|-
| 2006 || Early March || Creation || The name ''Twitter'' (spelt '''twttr''' at the time) is chosen for the service. The idea for the name is attributed to [[Noah Glass]].<ref>{{cite book|title = ''Hatching Twitter''|last = Bilton|first = Nick}}, Chapter II, Section ''Twitter'', Pages 61-64</ref><ref>{{Cite web|url=http://www.businessinsider.com/forgotten-twitter-co-founder-noah-glass-2013-10|title = Here's What Happened To Forgotten Twitter Co-Founder Noah Glass After He Was Kicked Out Of The Company|last = D'Onfro|first = Julian|date = October 9, 2013|accessdate = January 23, 2014|publisher = ''[[Business Insider]]''}}</ref>
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| 2006 || Early March || Creation || The name ''Twitter'' (spelt '''twttr''' at the time) is chosen for the service. The idea for the name is attributed to [[wikipedia:Noah Glass|Noah Glass]].<ref>{{cite book|title = ''Hatching Twitter''|last = Bilton|first = Nick}}, Chapter II, Section ''Twitter'', Pages 61-64</ref><ref>{{Cite web|url=http://www.businessinsider.com/forgotten-twitter-co-founder-noah-glass-2013-10|title = Here's What Happened To Forgotten Twitter Co-Founder Noah Glass After He Was Kicked Out Of The Company|last = D'Onfro|first = Julian|date = October 9, 2013|accessdate = January 23, 2014|publisher = ''[[wikipedia:Business Insider|Business Insider]]''}}</ref>
 
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|-
| 2006 || March 21 || Creation || Twitter is officially set up and [[Jack Dorsey]] sends the first tweet.<ref name=Dorsey2006>{{cite web|title=just setting up my twttr |url=https://www.twitter.com/jack/status/20 |date=March 21, 2006 |author=Dorsey, Jack |publisher=Twitter |accessdate=February 4, 2011 |authorlink=Jack Dorsey}}</ref>
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| 2006 || March 21 || Creation || Twitter is officially set up and [[wikipedia:Jack Dorsey|Jack Dorsey]] sends the first tweet.<ref name=Dorsey2006>{{cite web|title=just setting up my twttr |url=https://www.twitter.com/jack/status/20 |date=March 21, 2006 |author=Dorsey, Jack |publisher=Twitter |accessdate=February 4, 2011 |authorlink=Jack Dorsey}}</ref>
 
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| 2006 || July 15 || Media coverage || Noah Glass tells [[Om Malik]] of [[GigaOm]] about Twitter (then called '''twttr'''), and Malik writes an article about it on GigaOm.<ref>{{cite web|url=http://gigaom.com/2006/07/15/valleys-all-twttr/|title = Silicon Valley’s All Twttr|last = Malik|first = Om|authorlink = Om Malik|date = July 15, 2006|accessdate = January 22, 2014|publisher = [[GigaOm]]}}</ref> This appears to be the first ever news coverage of Twitter,<ref>{{cite web|url=http://techcrunch.com/2013/08/13/congrats-om/|title = Om Malik, Father Of Tech News Blogging, American Citizen|last = Tsotsis|first = Alexia|date = August 13, 2013|accessdate = January 22, 2014|publisher = ''[[TechCrunch]]''}}</ref> and a number of people, including Malik himself, have commented on the accuracy (or lack thereof) of its predictions from the perspective of hindsight.<ref>{{Cite web|url=http://www.slate.com/blogs/future_tense/2013/11/05/om_malik_s_first_blog_post_about_twitter_in_2006_got_everything_wrong.html|title = The First Blog Post About Twitter Got Pretty Much Everything Wrong|last = Oremus|first = Will|date = November 5, 2013|accessdate = January 22, 2014|publisher = ''[[Slate Magazine]]''}}</ref><ref>{{Cite web|url=http://gigaom.com/2013/11/04/to-live-and-die-in-public-thats-twitter/|title = To live and die in public: That’s Twitter|last = Malik|first = Om|authorlink = Om Malik|date = November 4, 2013|accessdate = January 22, 2014|publisher = [[GigaOm]]}}</ref><ref>{{cite web|url=http://clairediazortiz.com/5-lessons-on-twitter/|title = 5 Lessons on Twitter from the First Article Ever Written About It|last = Diaz-Oritz|first = Claire|accessdate = January 22, 2014}}</ref>
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| 2006 || July 15 || Media coverage || Noah Glass tells [[wikipedia:Om Malik|Om Malik]] of [[wikipedia:GigaOm|GigaOm]] about Twitter (then called '''twttr'''), and Malik writes an article about it on GigaOm.<ref>{{cite web|url=http://gigaom.com/2006/07/15/valleys-all-twttr/|title = Silicon Valley’s All Twttr|last = Malik|first = Om|authorlink = Om Malik|date = July 15, 2006|accessdate = January 22, 2014|publisher = [[wikipedia:GigaOm|GigaOm]]}}</ref> This appears to be the first ever news coverage of Twitter,<ref>{{cite web|url=http://techcrunch.com/2013/08/13/congrats-om/|title = Om Malik, Father Of Tech News Blogging, American Citizen|last = Tsotsis|first = Alexia|date = August 13, 2013|accessdate = January 22, 2014|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref> and a number of people, including Malik himself, have commented on the accuracy (or lack thereof) of its predictions from the perspective of hindsight.<ref>{{Cite web|url=http://www.slate.com/blogs/future_tense/2013/11/05/om_malik_s_first_blog_post_about_twitter_in_2006_got_everything_wrong.html|title = The First Blog Post About Twitter Got Pretty Much Everything Wrong|last = Oremus|first = Will|date = November 5, 2013|accessdate = January 22, 2014|publisher = ''[[wikipedia:Slate Magazine|Slate Magazine]]''}}</ref><ref>{{Cite web|url=http://gigaom.com/2013/11/04/to-live-and-die-in-public-thats-twitter/|title = To live and die in public: That’s Twitter|last = Malik|first = Om|authorlink = Om Malik|date = November 4, 2013|accessdate = January 22, 2014|publisher = [[wikipedia:GigaOm|GigaOm]]}}</ref><ref>{{cite web|url=http://clairediazortiz.com/5-lessons-on-twitter/|title = 5 Lessons on Twitter from the First Article Ever Written About It|last = Diaz-Oritz|first = Claire|accessdate = January 22, 2014}}</ref>
 
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|-
| 2006 || August 3 || Usage || Twitter users tweet about a mild (4.4 on the [[Richter scale]]) earthquake in [[California]]. The event helps Twitter's team see the potential of Twitter as a way for many people to contribute to the reporting of a live event, each from his or her own vantage point.<ref>{{cite web|url=https://blog.twitter.com/2006/have-your-quake-and-twitter-it-too|title = Have Your Quake And Twitter It Too|last = Stone|first = Biz|authorlink = Biz Stone|date = August 3, 2006|accessdate = January 23, 2014|publisher = ''Twitter'' blog}}</ref>
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| 2006 || August 3 || Usage || Twitter users tweet about a mild (4.4 on the [[wikipedia:Richter scale|Richter scale]]) earthquake in [[wikipedia:California|California]]. The event helps Twitter's team see the potential of Twitter as a way for many people to contribute to the reporting of a live event, each from his or her own vantage point.<ref>{{cite web|url=https://blog.twitter.com/2006/have-your-quake-and-twitter-it-too|title = Have Your Quake And Twitter It Too|last = Stone|first = Biz|authorlink = Biz Stone|date = August 3, 2006|accessdate = January 23, 2014|publisher = ''Twitter'' blog}}</ref>
 
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| 2006 || September || Userbase || Twitter attempts to have a grand launch at the [[Love Parade]], but gets very little traction there, with only 100 new signups.<ref>{{cite book|title = ''Hatching Twitter''|last = Bilton|first = Nick}}, Chapter III, Section ''A Bloody Mess''</ref>
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| 2006 || September || Userbase || Twitter attempts to have a grand launch at the [[wikipedia:Love Parade|Love Parade]], but gets very little traction there, with only 100 new signups.<ref>{{cite book|title = ''Hatching Twitter''|last = Bilton|first = Nick}}, Chapter III, Section ''A Bloody Mess''</ref>
 
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| 2006 || October || Financial/legal and company operation || [[Biz Stone]], [[Evan Williams (Internet entrepreneur)|Evan Williams]], Dorsey, and other members of Odeo, form Obvious Corporation and acquired Odeo, together with its assets—including Odeo.com and Twitter.com—from the investors and shareholders.<ref name='Odeo RIP'>{{Cite news| first=Om | last=Malik | coauthors= |authorlink= | title=Odeo RIP, Hello Obvious Corp | date=October 25, 2006 |url=http://gigaom.com/2006/10/25/odeo-rip-hello-obvious-corp/ |work=[[GigaOM]] |accessdate=June 20, 2009}}</ref>
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| 2006 || October || Financial/legal and company operation || [[wikipedia:Biz Stone|Biz Stone]], [[wikipedia:Evan Williams (Internet entrepreneur)|Evan Williams]], Dorsey, and other members of Odeo, form Obvious Corporation and acquired Odeo, together with its assets—including Odeo.com and Twitter.com—from the investors and shareholders.<ref name='Odeo RIP'>{{Cite news| first=Om | last=Malik | coauthors= |authorlink= | title=Odeo RIP, Hello Obvious Corp | date=October 25, 2006 |url=http://gigaom.com/2006/10/25/odeo-rip-hello-obvious-corp/ |work=[[wikipedia:GigaOM|GigaOM]] |accessdate=June 20, 2009}}</ref>
 
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| 2007 || March 12 || Userbase || Twitter is highly successful at [[South by Southwest Interactive]] (SXSW) and gets a major bump in usage from the event.<ref>{{cite web|url=http://gawker.com/tech/next-big-thing/twitter-blows-up-at-sxsw-conference-243634.php |title=Twitter Blows Up at SXSW Conference |last=Douglas |first=Nick |date=March 12, 2007 |work=[[Gawker]] |accessdate=February 21, 2011}}</ref> Commentator [[Steven Levy]] calls this a tipping point for Twitter.<ref name='Newsweek Tipping Point'>{{Cite news|author=Levy, Steven|title=Twitter: Is Brevity The Next Big Thing? |date=April 30, 2007 |url=http://www.newsweek.com/id/35289 |work=[[Newsweek]] |accessdate=February 4, 2011 |authorlink=Steven Levy}}</ref>
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| 2007 || March 12 || Userbase || Twitter is highly successful at [[wikipedia:South by Southwest Interactive|South by Southwest Interactive]] (SXSW) and gets a major bump in usage from the event.<ref>{{cite web|url=http://gawker.com/tech/next-big-thing/twitter-blows-up-at-sxsw-conference-243634.php |title=Twitter Blows Up at SXSW Conference |last=Douglas |first=Nick |date=March 12, 2007 |work=[[wikipedia:Gawker|Gawker]] |accessdate=February 21, 2011}}</ref> Commentator [[wikipedia:Steven Levy|Steven Levy]] calls this a tipping point for Twitter.<ref name='Newsweek Tipping Point'>{{Cite news|author=Levy, Steven|title=Twitter: Is Brevity The Next Big Thing? |date=April 30, 2007 |url=http://www.newsweek.com/id/35289 |work=[[wikipedia:Newsweek|Newsweek]] |accessdate=February 4, 2011 |authorlink=Steven Levy}}</ref>
 
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| 2007 || April || Financial/legal and company operation || Twitter spins off into its own company.<ref name='Dorsey Interview'>{{cite web|url=http://www.thedailyanchor.com/2009/02/12/a-conversation-with-twitter-co-founder-jack-dorsey/ |title=A Conversation with Twitter Co-Founder Jack Dorsey |accessdate=February 12, 2009 |last=Lennon |first=Andrew |work=[[The Daily Anchor]] }}</ref>
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| 2007 || April || Financial/legal and company operation || Twitter spins off into its own company.<ref name='Dorsey Interview'>{{cite web|url=http://www.thedailyanchor.com/2009/02/12/a-conversation-with-twitter-co-founder-jack-dorsey/ |title=A Conversation with Twitter Co-Founder Jack Dorsey |accessdate=February 12, 2009 |last=Lennon |first=Andrew |work=[[wikipedia:The Daily Anchor|The Daily Anchor]] }}</ref>
 
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| 2007 || June 26 || Financial/legal || Twitter announces that it has closed a funding round led by [[Fred Wilson (financier)|Fred Wilson]] of [[Union Square Ventures]].<ref>{{cite web|url=https://blog.twitter.com/2007/taking-bite-out-big-apple|title = Taking a bite out of the big apple|last = Dorsey|first = Jack|date = June 26, 2007|accessdate = January 23, 2014|publisher = ''Twitter' blog}}</ref> The five-million-dollar round values Twitter at $20 million.<ref>{{cite book|title = ''Hatching Twitter''|last = Bilton|first = Nick}}, Page 114</ref>
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| 2007 || June 26 || Financial/legal || Twitter announces that it has closed a funding round led by [[wikipedia:Fred Wilson (financier)|Fred Wilson]] of [[wikipedia:Union Square Ventures|Union Square Ventures]].<ref>{{cite web|url=https://blog.twitter.com/2007/taking-bite-out-big-apple|title = Taking a bite out of the big apple|last = Dorsey|first = Jack|date = June 26, 2007|accessdate = January 23, 2014|publisher = ''Twitter' blog}}</ref> The five-million-dollar round values Twitter at $20 million.<ref>{{cite book|title = ''Hatching Twitter''|last = Bilton|first = Nick}}, Page 114</ref>
 
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| 2007 || August 23 || Usage || The hashtag (#), first proposed by user Chris Messina, debuts on Twitter.<ref>{{cite web|url=https://twitter.com/chrismessina/status/223115412|title = Chris Messina Twitter Feed|last = Messina|first = Chris|date = August 23, 2007|accessdate = July 30, 2014|publisher = ''Twitter' feed}}</ref>  
 
| 2007 || August 23 || Usage || The hashtag (#), first proposed by user Chris Messina, debuts on Twitter.<ref>{{cite web|url=https://twitter.com/chrismessina/status/223115412|title = Chris Messina Twitter Feed|last = Messina|first = Chris|date = August 23, 2007|accessdate = July 30, 2014|publisher = ''Twitter' feed}}</ref>  
 
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| 2008 || June 24 || Financial/legal || Twitter announces the closure of its second funding round, welcoming new investors [[Bijan Sabet]] of [[Spark Capital]] and [[Jeff Bezos]] of [[Bezos Expeditions]]. Existing partners [[Union Square Ventures]] and [[Digital Garage]] also invest more.<ref>{{cite web|url=https://blog.twitter.com/2008/welcoming-bijan-and-jeff|title = Welcoming Bijan and Jeff|date = June 24, 2008|accessdate = January 24, 2014|publisher = ''Twitter'' blog|last = Stone|first = Biz|authorlink = Biz Stone}}</ref>
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| 2008 || June 24 || Financial/legal || Twitter announces the closure of its second funding round, welcoming new investors [[wikipedia:Bijan Sabet|Bijan Sabet]] of [[wikipedia:Spark Capital|Spark Capital]] and [[wikipedia:Jeff Bezos|Jeff Bezos]] of [[wikipedia:Bezos Expeditions|Bezos Expeditions]]. Existing partners [[wikipedia:Union Square Ventures|Union Square Ventures]] and [[wikipedia:Digital Garage|Digital Garage]] also invest more.<ref>{{cite web|url=https://blog.twitter.com/2008/welcoming-bijan-and-jeff|title = Welcoming Bijan and Jeff|date = June 24, 2008|accessdate = January 24, 2014|publisher = ''Twitter'' blog|last = Stone|first = Biz|authorlink = Biz Stone}}</ref>
 
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| 2008 || October 16 || Company operation || It is announced that [[Jack Dorsey]] has stepped down from the CEO role at Twitter, and [[Evan Williams (Internet entrepreneur)|Evan Williams]] takes over.<ref>{{cite web|url=http://techcrunch.com/2008/10/16/ceo-change-at-twitter-ev-williams-back-at-the-helm/|title = CEO Change At Twitter: Ev Williams Back At The Helm|last = Arrington|first = Michael|authorlink = Michael Arrington|date = October 16, 2008|accessdate = January 23, 2014|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://venturebeat.com/2008/10/16/a-swap-atop-twitter-for-the-new-phase/|title = A swap atop Twitter for the "new phase"|last = Siegler|first = MG|authorlink = MG Siegler|date = October 16, 2008|accessdate = January 23, 2014|publisher = ''[[VentureBeat]]''}}</ref><ref>{{cite web|url=http://news.cnet.com/8301-13577_3-10068368-36.html|title = Twitter CEO Jack Dorsey steps down. He's switching places with fellow co-founder Evan Williams, who will become CEO as Dorsey takes over the position of chairman of the board.|last = McCarthy|first = Caroline|date = October 16, 2008|accessdate = January 23, 2014|publisher = ''[[CNet]]''}}</ref><ref>{{cite web|url=http://bits.blogs.nytimes.com/2008/10/16/ttwitter-sidelines-one-founder-and-promotes-another/?_php=true&_type=blogs&_r=0|title = Twitter Sidelines One Founder and Promotes Another|last = Cain Miller|first = Claire|last2 = Goel|first2 = Vinod|date = October 16, 2008|accessdate = January 23, 2014|publisher = ''[[New York Times]]'' ''Bits'' blog}}</ref>
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| 2008 || October 16 || Company operation || It is announced that [[wikipedia:Jack Dorsey|Jack Dorsey]] has stepped down from the CEO role at Twitter, and [[wikipedia:Evan Williams (Internet entrepreneur)|Evan Williams]] takes over.<ref>{{cite web|url=http://techcrunch.com/2008/10/16/ceo-change-at-twitter-ev-williams-back-at-the-helm/|title = CEO Change At Twitter: Ev Williams Back At The Helm|last = Arrington|first = Michael|authorlink = Michael Arrington|date = October 16, 2008|accessdate = January 23, 2014|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://venturebeat.com/2008/10/16/a-swap-atop-twitter-for-the-new-phase/|title = A swap atop Twitter for the "new phase"|last = Siegler|first = MG|authorlink = MG Siegler|date = October 16, 2008|accessdate = January 23, 2014|publisher = ''[[wikipedia:VentureBeat|VentureBeat]]''}}</ref><ref>{{cite web|url=http://news.cnet.com/8301-13577_3-10068368-36.html|title = Twitter CEO Jack Dorsey steps down. He's switching places with fellow co-founder Evan Williams, who will become CEO as Dorsey takes over the position of chairman of the board.|last = McCarthy|first = Caroline|date = October 16, 2008|accessdate = January 23, 2014|publisher = ''[[wikipedia:CNet|CNet]]''}}</ref><ref>{{cite web|url=http://bits.blogs.nytimes.com/2008/10/16/ttwitter-sidelines-one-founder-and-promotes-another/?_php=true&_type=blogs&_r=0|title = Twitter Sidelines One Founder and Promotes Another|last = Cain Miller|first = Claire|last2 = Goel|first2 = Vinod|date = October 16, 2008|accessdate = January 23, 2014|publisher = ''[[wikipedia:New York Times|New York Times]]'' ''Bits'' blog}}</ref>
 
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| 2009 || February 13 || Financial/legal || Twitter announces the closure of yet another funding round, with new investors [[Peter Fenton (venture capitalist)|Peter Fenton]] of [[Benchmark Capital]] and [[Todd Chaffee]] of [[Institutional Venture Partners]].<ref>{{cite web|url=https://blog.twitter.com/2009/opportunity-knocks|title = Opportunity Knocks|date = February 13, 2009|accessdate = January 24, 2014|publisher = ''Twitter'' blog|last = Stone|first = Biz|authorlink = Biz Stone}}</ref><ref>{{cite web|url=http://techcrunch.com/2009/02/13/twitter-raises-third-round-of-funding-from-benchmark-and-ivp/|title = Twitter Raises $35 Million Series C From Benchmark and IVP|last = Hendrickson|first = Mark|date = February 13, 2009|accessdate = January 24, 2014|publisher = ''[[TechCrunch]]''}}</ref>
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| 2009 || February 13 || Financial/legal || Twitter announces the closure of yet another funding round, with new investors [[wikipedia:Peter Fenton (venture capitalist)|Peter Fenton]] of [[wikipedia:Benchmark Capital|Benchmark Capital]] and [[wikipedia:Todd Chaffee|Todd Chaffee]] of [[wikipedia:Institutional Venture Partners|Institutional Venture Partners]].<ref>{{cite web|url=https://blog.twitter.com/2009/opportunity-knocks|title = Opportunity Knocks|date = February 13, 2009|accessdate = January 24, 2014|publisher = ''Twitter'' blog|last = Stone|first = Biz|authorlink = Biz Stone}}</ref><ref>{{cite web|url=http://techcrunch.com/2009/02/13/twitter-raises-third-round-of-funding-from-benchmark-and-ivp/|title = Twitter Raises $35 Million Series C From Benchmark and IVP|last = Hendrickson|first = Mark|date = February 13, 2009|accessdate = January 24, 2014|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
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| 2009 || April 17 || Media coverage, userbase expansion || Evan Williams appears alongside [[Ashton Kutcher]] on [[Oprah Winfrey]]'s show to explain Twitter to Oprah's audience.<ref>{{cite web|url=http://mashable.com/2009/04/17/twitter-oprah/|title = Ashton Kutcher and Evan Williams Talk Twitter With Oprah [Video]|last = Ostrow|first = Adam|date = April 17, 2009|accessdate = January 23, 2014}}</ref>
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| 2009 || April 17 || Media coverage, userbase expansion || Evan Williams appears alongside [[wikipedia:Ashton Kutcher|Ashton Kutcher]] on [[wikipedia:Oprah Winfrey|Oprah Winfrey]]'s show to explain Twitter to Oprah's audience.<ref>{{cite web|url=http://mashable.com/2009/04/17/twitter-oprah/|title = Ashton Kutcher and Evan Williams Talk Twitter With Oprah [Video]|last = Ostrow|first = Adam|date = April 17, 2009|accessdate = January 23, 2014}}</ref>
 
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| 2009 || April 20 onward || Media coverage, userbase expansion || Executives from Twitter and [[WordPress]] head over to [[Iraq]] to expose the people there to social media and the [[Internet]].<ref>{{cite web|url=http://www.cnn.com/2009/TECH/04/21/iraq.twitter.technology/index.html?eref=rss_latest%22|title = Twitter, WordPress execs in Iraq to help country use new media|date = April 22, 2009|accessdate = January 23, 2014}}</ref>
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| 2009 || April 20 onward || Media coverage, userbase expansion || Executives from Twitter and [[wikipedia:WordPress|WordPress]] head over to [[wikipedia:Iraq|Iraq]] to expose the people there to social media and the [[wikipedia:Internet|Internet]].<ref>{{cite web|url=http://www.cnn.com/2009/TECH/04/21/iraq.twitter.technology/index.html?eref=rss_latest%22|title = Twitter, WordPress execs in Iraq to help country use new media|date = April 22, 2009|accessdate = January 23, 2014}}</ref>
 
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| 2009 || April 30 || Media coverage || Twitter executives [[Biz Stone]] and [[Evan Williams (Internet entrepreneur)|Evan Williams]] are included in the TIME 100.<ref>{{cite web|url=http://content.time.com/time/specials/packages/article/0,28804,1894410_1893837_1894156,00.html|title = The Twitter Guys|last = Kutcher|first = Ashton|date = April 30, 2009|accessdate = January 23, 2014|publisher = [[Time Magazine]]}}</ref>
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| 2009 || April 30 || Media coverage || Twitter executives [[wikipedia:Biz Stone|Biz Stone]] and [[wikipedia:Evan Williams (Internet entrepreneur)|Evan Williams]] are included in the TIME 100.<ref>{{cite web|url=http://content.time.com/time/specials/packages/article/0,28804,1894410_1893837_1894156,00.html|title = The Twitter Guys|last = Kutcher|first = Ashton|date = April 30, 2009|accessdate = January 23, 2014|publisher = [[wikipedia:Time Magazine|Time Magazine]]}}</ref>
 
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|-
| 2009 || June 15–16 || Usage || Twitter reschedules planned downtime for maintenance so as not to conflict with a large planned protest in Iran.<ref>{{cite web|url=https://blog.twitter.com/2009/down-time-rescheduled|title = Down Time Rescheduled|last = Stone|first = Biz|authorlink = Biz Stone|date = June 15, 2009|accessdate = January 23, 2014|publisher = ''Twitter'' blog}}</ref> Because a US State Department official had emailed Twitter about the planned protest, newspapers speculate that Twitter rescheduled its downtime because of pressure from the US government.<ref>{{cite web|url=http://mashable.com/2009/06/16/twitter-iran/|title = U.S. Government Asks Twitter to Stay Up for #IranElection Crisis|last = Parr|first = Ben|date = June 16, 2009|accessdate = January 23, 2014|publisher = ''[[Mashable]]''}}</ref><ref>{{cite web|url=http://www.washingtontimes.com/news/2009/jun/16/irans-twitter-revolution/|title = EDITORIAL: Iran’s Twitter revolution|publisher = ''[[Washington Post]]''|date = June 16, 2009|accessdate = January 23, 2014}}</ref><ref>{{cite web|url=http://content.time.com/time/world/article/0,8599,1905125,00.html|title = Iran Protests: Twitter, the Medium of the Movement|last = Grossman|first = Lev|date = June 17, 2009|accessdate = January 23, 2014|publisher = ''[[Time Magazine]]''}}</ref>
+
| 2009 || June 15–16 || Usage || Twitter reschedules planned downtime for maintenance so as not to conflict with a large planned protest in Iran.<ref>{{cite web|url=https://blog.twitter.com/2009/down-time-rescheduled|title = Down Time Rescheduled|last = Stone|first = Biz|authorlink = Biz Stone|date = June 15, 2009|accessdate = January 23, 2014|publisher = ''Twitter'' blog}}</ref> Because a US State Department official had emailed Twitter about the planned protest, newspapers speculate that Twitter rescheduled its downtime because of pressure from the US government.<ref>{{cite web|url=http://mashable.com/2009/06/16/twitter-iran/|title = U.S. Government Asks Twitter to Stay Up for #IranElection Crisis|last = Parr|first = Ben|date = June 16, 2009|accessdate = January 23, 2014|publisher = ''[[wikipedia:Mashable|Mashable]]''}}</ref><ref>{{cite web|url=http://www.washingtontimes.com/news/2009/jun/16/irans-twitter-revolution/|title = EDITORIAL: Iran’s Twitter revolution|publisher = ''[[wikipedia:Washington Post|Washington Post]]''|date = June 16, 2009|accessdate = January 23, 2014}}</ref><ref>{{cite web|url=http://content.time.com/time/world/article/0,8599,1905125,00.html|title = Iran Protests: Twitter, the Medium of the Movement|last = Grossman|first = Lev|date = June 17, 2009|accessdate = January 23, 2014|publisher = ''[[wikipedia:Time Magazine|Time Magazine]]''}}</ref>
 
|-
 
|-
| 2010 || January 22 || Usage || The first unassisted off-Earth Twitter message is posted from the [[International Space Station]] by [[NASA]] [[astronaut]] [[Timothy Creamer|T. J. Creamer]].<ref>[[Press release]] (January 22, 2010). [http://www.nasa.gov/home/hqnews/2010/jan/HQ_M10-011_Hawaii221169.html "Media Advisory M10-012 – NASA Extends the World Wide Web Out into Space"]. [[NASA]]. Retrieved February 5, 2011.</ref>  
+
| 2010 || January 22 || Usage || The first unassisted off-Earth Twitter message is posted from the [[wikipedia:International Space Station|International Space Station]] by [[wikipedia:NASA|NASA]] [[wikipedia:astronaut|astronaut]] [[wikipedia:Timothy Creamer|T. J. Creamer]].<ref>[[wikipedia:Press release|Press release]] (January 22, 2010). [http://www.nasa.gov/home/hqnews/2010/jan/HQ_M10-011_Hawaii221169.html "Media Advisory M10-012 – NASA Extends the World Wide Web Out into Space"]. [[wikipedia:NASA|NASA]]. Retrieved February 5, 2011.</ref>  
 
|-
 
|-
| 2010 || April 13 || Product || Twitter announces that it will start allowing for advertising in the form of ''promoted tweets'' – "ordinary tweets that businesses and individuals want to highlight to a wider group of users."<ref>{{cite web|url=https://blog.twitter.com/2010/hello-world|title = Hello World|date = April 13, 2010|accessdate = January 23, 2014|publisher = ''Twitter'' blog|last = Stone|first = Biz|authorlink = Biz Stone}}</ref><ref>{{cite web|url=http://online.wsj.com/news/articles/SB10001424052702303695604575181163126094200|title = Twitter to Start Rolling Out Advertising|last = Vascellaro|first = Jessica|date = April 13, 2010|accessdate = January 23, 2014|publisher = ''[[Wall Street Journal]]''}}</ref><ref>{{cite web|url=https://www.nytimes.com/2010/04/13/technology/internet/13twitter.html|title = Twitter Unveils Plans to Draw Money From Ads|last = Cain Miller|first = Claire|date = April 13, 2010|accessdate = January 23, 2014|publisher = ''[[New York Times]]''}}</ref>
+
| 2010 || April 13 || Product || Twitter announces that it will start allowing for advertising in the form of ''promoted tweets'' – "ordinary tweets that businesses and individuals want to highlight to a wider group of users."<ref>{{cite web|url=https://blog.twitter.com/2010/hello-world|title = Hello World|date = April 13, 2010|accessdate = January 23, 2014|publisher = ''Twitter'' blog|last = Stone|first = Biz|authorlink = Biz Stone}}</ref><ref>{{cite web|url=http://online.wsj.com/news/articles/SB10001424052702303695604575181163126094200|title = Twitter to Start Rolling Out Advertising|last = Vascellaro|first = Jessica|date = April 13, 2010|accessdate = January 23, 2014|publisher = ''[[wikipedia:Wall Street Journal|Wall Street Journal]]''}}</ref><ref>{{cite web|url=https://www.nytimes.com/2010/04/13/technology/internet/13twitter.html|title = Twitter Unveils Plans to Draw Money From Ads|last = Cain Miller|first = Claire|date = April 13, 2010|accessdate = January 23, 2014|publisher = ''[[wikipedia:New York Times|New York Times]]''}}</ref>
 
|-
 
|-
| 2010 || October 4 || Company operation || [[Evan Williams (Internet entrepreneur)|Evan Williams]] steps down as CEO, and [[Dick Costolo]], the erstwhile COO, takes over as CEO.<ref>{{cite web|url=https://blog.twitter.com/2010/newtwitterceo|title = #newtwitterceo|last = Williams|first = Evan|date = October 4, 2010|accessdate = January 23, 2014|publisher = ''Twitter'' blog}}</ref><ref>{{cite web|url=http://techcrunch.com/2010/10/04/twitter-ceo-dick-costolo/|title = Dick Costolo Takes Twitter CEO Role So Evan Williams Can Focus On Product|last = Siegler|first = MG|authorlink = MG Siegler|date = October 4, 2010|accessdate = January 23, 2014|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://techcrunch.com/2010/10/04/twitter-ceo-change/|title = Evan Williams And Dick Costolo: New Twitter Triggered CEO Change|last = Siegler|first = MG|authorlink = MG Siegler|date = October 4, 2010|accessdate = January 23, 2014}}</ref>
+
| 2010 || October 4 || Company operation || [[wikipedia:Evan Williams (Internet entrepreneur)|Evan Williams]] steps down as CEO, and [[wikipedia:Dick Costolo|Dick Costolo]], the erstwhile COO, takes over as CEO.<ref>{{cite web|url=https://blog.twitter.com/2010/newtwitterceo|title = #newtwitterceo|last = Williams|first = Evan|date = October 4, 2010|accessdate = January 23, 2014|publisher = ''Twitter'' blog}}</ref><ref>{{cite web|url=http://techcrunch.com/2010/10/04/twitter-ceo-dick-costolo/|title = Dick Costolo Takes Twitter CEO Role So Evan Williams Can Focus On Product|last = Siegler|first = MG|authorlink = MG Siegler|date = October 4, 2010|accessdate = January 23, 2014|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://techcrunch.com/2010/10/04/twitter-ceo-change/|title = Evan Williams And Dick Costolo: New Twitter Triggered CEO Change|last = Siegler|first = MG|authorlink = MG Siegler|date = October 4, 2010|accessdate = January 23, 2014}}</ref>
 
|-
 
|-
 
| 2011 || April 5, April 20 || Product || Twitter tests a new homepage and phased out the "Old Twitter." <ref>{{cite news|url=http://www.huffingtonpost.com/2011/04/05/new-twitter-homepage_n_845110.html |title=Twitter Users Report Twitter.com Has A New Homepage (SCREENSHOTS) |publisher=Huffingtonpost.com |date=2011-05-04 |accessdate=2011-05-22 |first=Dean |last=Praetorius}}</ref> However, a glitch came about after the page was launched, so the previous "retro" homepage was still in use until the issues were resolved; the new homepage was reintroduced on April 20.<ref>{{cite web|last=Dunn |first=John E |url=http://www.pcworld.com/article/224410/twitter_delays_homepage_revamp_after_service_glitch.html |title=Twitter Delays Homepage Revamp After Service Glitch |publisher=PCWorld |date=2011-04-06 |accessdate=2011-05-22}}</ref><ref>{{cite web|url=http://www.webpronews.com/new-twitter-homepage-2011-04|title=New Twitter Homepage Launched|first=Chris|last=Crum|date=April 20, 2011|accessdate=April 25, 2011}}</ref>
 
| 2011 || April 5, April 20 || Product || Twitter tests a new homepage and phased out the "Old Twitter." <ref>{{cite news|url=http://www.huffingtonpost.com/2011/04/05/new-twitter-homepage_n_845110.html |title=Twitter Users Report Twitter.com Has A New Homepage (SCREENSHOTS) |publisher=Huffingtonpost.com |date=2011-05-04 |accessdate=2011-05-22 |first=Dean |last=Praetorius}}</ref> However, a glitch came about after the page was launched, so the previous "retro" homepage was still in use until the issues were resolved; the new homepage was reintroduced on April 20.<ref>{{cite web|last=Dunn |first=John E |url=http://www.pcworld.com/article/224410/twitter_delays_homepage_revamp_after_service_glitch.html |title=Twitter Delays Homepage Revamp After Service Glitch |publisher=PCWorld |date=2011-04-06 |accessdate=2011-05-22}}</ref><ref>{{cite web|url=http://www.webpronews.com/new-twitter-homepage-2011-04|title=New Twitter Homepage Launched|first=Chris|last=Crum|date=April 20, 2011|accessdate=April 25, 2011}}</ref>
 
|-
 
|-
| 2011 || July 5 || Acquisition || Twitter acquires BackType, a real-time social analytics platform.<ref>{{cite web|url=http://techcrunch.com/2011/07/05/twitter-acquires-social-analytics-startup-backtype/|title = Twitter Acquires Social Analytics Platform BackType|last = Rao|first = Leena|date = July 5, 2011|accessdate = August 1, 2014|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://venturebeat.com/2011/07/05/twitter-buys-backtype/|title = Twitter acquires BackType for improved analytics|last = Cheredar|first = Tom|date = July 5, 2011|accessdate = August 1, 2014|publisher = ''[[VentureBeat]]''}}</ref>
+
| 2011 || July 5 || Acquisition || Twitter acquires BackType, a real-time social analytics platform.<ref>{{cite web|url=http://techcrunch.com/2011/07/05/twitter-acquires-social-analytics-startup-backtype/|title = Twitter Acquires Social Analytics Platform BackType|last = Rao|first = Leena|date = July 5, 2011|accessdate = August 1, 2014|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://venturebeat.com/2011/07/05/twitter-buys-backtype/|title = Twitter acquires BackType for improved analytics|last = Cheredar|first = Tom|date = July 5, 2011|accessdate = August 1, 2014|publisher = ''[[wikipedia:VentureBeat|VentureBeat]]''}}</ref>
 
|-
 
|-
| 2011 || September 8–9 || Financial/legal || Twitter closes its Series G round, raising $800 million at a $8 billion valuation. Of the $800 million, $400 million buys off shares from existing investors and the remaining $400 million goes to the company.<ref>{{cite web|url=http://techcrunch.com/2011/09/08/twitter-closing-its-400m-secondary-offering-tomorrow/|title = Twitter Closing Its $400M Secondary Offering Tomorrow|last = Tsotsis|first = Alexia|date = September 8, 2011|accessdate = January 24, 2014|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://www.searchenginejournal.com/twitter-set-to-close-400-million-in-series-g-funding-on-8-billion-valuation/33268/|title = Twitter Set to Close $400 Million in Series G Funding on $8 Billion Valuation|last = Angotti|first = David|date = September 9, 2011|accessdate = January 24, 2014|publisher = ''[[Search Engine Journal]]''}}</ref>
+
| 2011 || September 8–9 || Financial/legal || Twitter closes its Series G round, raising $800 million at a $8 billion valuation. Of the $800 million, $400 million buys off shares from existing investors and the remaining $400 million goes to the company.<ref>{{cite web|url=http://techcrunch.com/2011/09/08/twitter-closing-its-400m-secondary-offering-tomorrow/|title = Twitter Closing Its $400M Secondary Offering Tomorrow|last = Tsotsis|first = Alexia|date = September 8, 2011|accessdate = January 24, 2014|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://www.searchenginejournal.com/twitter-set-to-close-400-million-in-series-g-funding-on-8-billion-valuation/33268/|title = Twitter Set to Close $400 Million in Series G Funding on $8 Billion Valuation|last = Angotti|first = David|date = September 9, 2011|accessdate = January 24, 2014|publisher = ''[[wikipedia:Search Engine Journal|Search Engine Journal]]''}}</ref>
 
|-
 
|-
| 2011 || December 8 || Product || Twitter overhauls its website once more to feature the "Fly" design, which the service says is easier for new users to follow and promotes advertising. In addition to the ''Home'' tab, the ''Connect'' and ''Discover'' tabs are introduced along with a redesigned profile and timeline of Tweets. The site's layout is compared to that of [[Facebook]].<ref>{{cite web|url=http://fly.twitter.com/ |title=Twitter: Yours to discover |publisher=Fly.twitter.com |date= |accessdate=2012-01-20}}</ref><ref>{{cite news|author=Twitter / YouTube |url=http://www.foxnews.com/scitech/2011/12/09/what-need-to-know-about-new-twitter/?test=faces |title=Twitter 2.0: Everything You Need To Know About The New Changes |publisher=Fox News |date=2010-04-07 |accessdate=2012-01-20}}</ref>
+
| 2011 || December 8 || Product || Twitter overhauls its website once more to feature the "Fly" design, which the service says is easier for new users to follow and promotes advertising. In addition to the ''Home'' tab, the ''Connect'' and ''Discover'' tabs are introduced along with a redesigned profile and timeline of Tweets. The site's layout is compared to that of [[wikipedia:Facebook|Facebook]].<ref>{{cite web|url=http://fly.twitter.com/ |title=Twitter: Yours to discover |publisher=Fly.twitter.com |date= |accessdate=2012-01-20}}</ref><ref>{{cite news|author=Twitter / YouTube |url=http://www.foxnews.com/scitech/2011/12/09/what-need-to-know-about-new-twitter/?test=faces |title=Twitter 2.0: Everything You Need To Know About The New Changes |publisher=Fox News |date=2010-04-07 |accessdate=2012-01-20}}</ref>
 
|-
 
|-
| 2012 || February 21 || Product || Twitter announces a parternship with Russian search engine [[Yandex]]. Yandex, a Russian search engine, finds value within the partnership due to Twitter’s real time news feeds. Twitter’s director of business development explained that it is important to have Twitter content where Twitter users go.<ref>Prodhan Georgina February 21, 2012. “Twitter partners with Yandex for real-time search.” http://www.reuters.com/article/2012/02/21/twitter-yandex-idUSL5E8DK89H20120221</ref>
+
| 2012 || February 21 || Product || Twitter announces a parternship with Russian search engine [[wikipedia:Yandex|Yandex]]. Yandex, a Russian search engine, finds value within the partnership due to Twitter’s real time news feeds. Twitter’s director of business development explained that it is important to have Twitter content where Twitter users go.<ref>Prodhan Georgina February 21, 2012. “Twitter partners with Yandex for real-time search.” http://www.reuters.com/article/2012/02/21/twitter-yandex-idUSL5E8DK89H20120221</ref>
 
|-
 
|-
 
| 2012 || March 21 || Userbase || Twitter celebrates its sixth birthday while also announcing that it has 140 million users and sees 340 million tweets per day. The number of users is up 40% from their September 2011 number, which was said to have been at 100 million at the time.<ref>Wasserman, Todd. March 21, 2012. "Twitter Says It Has 140 Million Users" http://mashable.com/2012/03/21/twitter-has-140-million-users/</ref>
 
| 2012 || March 21 || Userbase || Twitter celebrates its sixth birthday while also announcing that it has 140 million users and sees 340 million tweets per day. The number of users is up 40% from their September 2011 number, which was said to have been at 100 million at the time.<ref>Wasserman, Todd. March 21, 2012. "Twitter Says It Has 140 Million Users" http://mashable.com/2012/03/21/twitter-has-140-million-users/</ref>
 
|-
 
|-
| 2012 || April || Company operation || Twitter announces that it is opening an office in [[Detroit]], with the aim of working with automotive brands and advertising agencies.<ref>{{cite news|url=http://www.reuters.com/article/2012/04/04/twitter-detroit-idUSL2E8F47G020120404 |title=Twitter heads to Motown to be closer to automakers |publisher=Reuters |date=2012-04-04 |accessdate=2012-04-05}}</ref> Twitter also expanded its office in [[Dublin]].<ref>{{cite news|url=http://www.independent.ie/business/technology/twitter-to-create-12-jobs-as-it-scales-up-irish-operations-3070098.html|title=Twitter to create 12 jobs as it scales up Irish operations |publisher=Irish Independent |date=2012-04-04 |accessdate=2012-04-05}}</ref>
+
| 2012 || April || Company operation || Twitter announces that it is opening an office in [[wikipedia:Detroit|Detroit]], with the aim of working with automotive brands and advertising agencies.<ref>{{cite news|url=http://www.reuters.com/article/2012/04/04/twitter-detroit-idUSL2E8F47G020120404 |title=Twitter heads to Motown to be closer to automakers |publisher=Reuters |date=2012-04-04 |accessdate=2012-04-05}}</ref> Twitter also expanded its office in [[wikipedia:Dublin|Dublin]].<ref>{{cite news|url=http://www.independent.ie/business/technology/twitter-to-create-12-jobs-as-it-scales-up-irish-operations-3070098.html|title=Twitter to create 12 jobs as it scales up Irish operations |publisher=Irish Independent |date=2012-04-04 |accessdate=2012-04-05}}</ref>
 
|-
 
|-
 
| 2012 || June 5 || Product || A modified logo is unveiled through the company blog, removing the text to showcase the slightly redesigned bird as the sole symbol of Twitter.<ref>{{cite web|last=Rodriguez |first=Salvador |url=http://www.latimes.com/business/technology/la-fi-tn-twitter-new-bird-20120606,0,2138652.story |title=Twitter adopts new bird logo |publisher=latimes.com |date=2012-06-06 |accessdate=2012-07-23}}</ref>
 
| 2012 || June 5 || Product || A modified logo is unveiled through the company blog, removing the text to showcase the slightly redesigned bird as the sole symbol of Twitter.<ref>{{cite web|last=Rodriguez |first=Salvador |url=http://www.latimes.com/business/technology/la-fi-tn-twitter-new-bird-20120606,0,2138652.story |title=Twitter adopts new bird logo |publisher=latimes.com |date=2012-06-06 |accessdate=2012-07-23}}</ref>
 
|-
 
|-
| 2012 || October 5 || Acquisition || Twitter acquired a video clip company called [[Vine (app)|Vine]] that launches (later) in January 2013.<ref>{{cite news|url=https://www.mediabistro.com/alltwitter/twitter-acquires-video-service_b29668|title=Twitter Acquires Video Service; Are Third Party Video Developers In Danger Now Too?|publisher=MediaBistro|date=October 9, 2012|accessdate=October 10, 2012}}</ref><ref>{{cite news|url=http://allthingsd.com/20121009/twitter-buys-vine-a-video-clip-company-that-never-launched/|title=Twitter Buys Vine, a Video Clip Company That Never Launched|publisher=All Things D|date=October 9, 2012|accessdate=October 10, 2012}}</ref> Twitter released Vine as a standalone app that allows users to create and share six-second looping video clips on January 24, 2013.  Vine videos shared on Twitter are visible directly in users' Twitter feeds.<ref>{{cite news|first=Stuart|last=Dredge|title=Vine iPhone app brings short, sharp video to Twitter|work=[[The Guardian]]|url=https://www.theguardian.com/technology/appsblog/2013/jan/24/twitter-vine-iphone-app|date=January 23, 2013|accessdate=January 26, 2013}}</ref> Due to an influx of inappropriate content, it is now rated 17+ in Apple's app store.<ref>{{cite web|title=Twitter's Vine Changes App Store Rating to +17, Adds Social Sharing Features|url=http://abcnews.go.com/Technology/twitters-vine-app-store-rating-17-adds-social/story?id=18420254|publisher=ABC News}}</ref>
+
| 2012 || October 5 || Acquisition || Twitter acquired a video clip company called [[wikipedia:Vine (app)|Vine]] that launches (later) in January 2013.<ref>{{cite news|url=https://www.mediabistro.com/alltwitter/twitter-acquires-video-service_b29668|title=Twitter Acquires Video Service; Are Third Party Video Developers In Danger Now Too?|publisher=MediaBistro|date=October 9, 2012|accessdate=October 10, 2012}}</ref><ref>{{cite news|url=http://allthingsd.com/20121009/twitter-buys-vine-a-video-clip-company-that-never-launched/|title=Twitter Buys Vine, a Video Clip Company That Never Launched|publisher=All Things D|date=October 9, 2012|accessdate=October 10, 2012}}</ref> Twitter released Vine as a standalone app that allows users to create and share six-second looping video clips on January 24, 2013.  Vine videos shared on Twitter are visible directly in users' Twitter feeds.<ref>{{cite news|first=Stuart|last=Dredge|title=Vine iPhone app brings short, sharp video to Twitter|work=[[wikipedia:The Guardian|The Guardian]]|url=https://www.theguardian.com/technology/appsblog/2013/jan/24/twitter-vine-iphone-app|date=January 23, 2013|accessdate=January 26, 2013}}</ref> Due to an influx of inappropriate content, it is now rated 17+ in Apple's app store.<ref>{{cite web|title=Twitter's Vine Changes App Store Rating to +17, Adds Social Sharing Features|url=http://abcnews.go.com/Technology/twitters-vine-app-store-rating-17-adds-social/story?id=18420254|publisher=ABC News}}</ref>
 
|-
 
|-
 
| 2012 || December 18 || Userbase || Twitter announces it had surpassed 200 million monthly active users. Twitter hit 100 million monthly active users in September 2011.<ref>Fiegerman, Seth. December 18, 2012. "Twitter Now Has More Than 200 Million Monthly Active Users." http://mashable.com/2012/12/18/twitter-200-million-active-users/</ref>
 
| 2012 || December 18 || Userbase || Twitter announces it had surpassed 200 million monthly active users. Twitter hit 100 million monthly active users in September 2011.<ref>Fiegerman, Seth. December 18, 2012. "Twitter Now Has More Than 200 Million Monthly Active Users." http://mashable.com/2012/12/18/twitter-200-million-active-users/</ref>
 
|-
 
|-
| 2013 || April 18 || Product || Twitter launches a music app called Twitter Music for the iPhone.<ref>{{cite web|last=Ulanoff|first=Lance|title=Twitter Launches Twitter #music App and Service|url=http://mashable.com/2013/04/18/twitter-music-launch-2/|publisher=Mashable|accessdate=28 April 2013|work=[[Mashable]]}}</ref>
+
| 2013 || April 18 || Product || Twitter launches a music app called Twitter Music for the iPhone.<ref>{{cite web|last=Ulanoff|first=Lance|title=Twitter Launches Twitter #music App and Service|url=http://mashable.com/2013/04/18/twitter-music-launch-2/|publisher=Mashable|accessdate=28 April 2013|work=[[wikipedia:Mashable|Mashable]]}}</ref>
 
|-
 
|-
 
| 2013 || August 28 || Acquisition || Twitter acquires Trendrr, a real-time social data company.<ref>{{cite news | url=http://thenextweb.com/twitter/2013/08/28/twitter-acquires-real-time-social-data-company-trendrr-to-help-it-better-tap-into-tv-and-media/ | title=Twitter acquires real-time social data company Trendrr to help it better tap into TV and media | work=The Next web | date=August 28, 2013 | accessdate=August 29, 2013}}</ref>
 
| 2013 || August 28 || Acquisition || Twitter acquires Trendrr, a real-time social data company.<ref>{{cite news | url=http://thenextweb.com/twitter/2013/08/28/twitter-acquires-real-time-social-data-company-trendrr-to-help-it-better-tap-into-tv-and-media/ | title=Twitter acquires real-time social data company Trendrr to help it better tap into TV and media | work=The Next web | date=August 28, 2013 | accessdate=August 29, 2013}}</ref>
Line 100: Line 100:
 
| 2013 || September 9 || Acquisition || Twitter acquires MoPub.<ref>{{cite news | url=http://money.cnn.com/2013/09/10/technology/social/twitter-acquisition/index.html | title=Twitter makes another acquisition | work=CNN Money | accessdate=September 10, 2013}}</ref>
 
| 2013 || September 9 || Acquisition || Twitter acquires MoPub.<ref>{{cite news | url=http://money.cnn.com/2013/09/10/technology/social/twitter-acquisition/index.html | title=Twitter makes another acquisition | work=CNN Money | accessdate=September 10, 2013}}</ref>
 
|-
 
|-
| 2013 || September 12 || Financial/legal || Twitter announces that it has filed papers with the [[U.S. Securities and Exchange Commission]] ahead of a planned [[Initial public offering|stock market listing]].<ref>{{cite news|publisher=BBC News|url=http://www.bbc.co.uk/news/business-24075010|title=Twitter plans stock market listing|date=September 12, 2013|accessdate=September 13, 2013}}</ref>
+
| 2013 || September 12 || Financial/legal || Twitter announces that it has filed papers with the [[wikipedia:U.S. Securities and Exchange Commission|U.S. Securities and Exchange Commission]] ahead of a planned [[wikipedia:Initial public offering|stock market listing]].<ref>{{cite news|publisher=BBC News|url=http://www.bbc.co.uk/news/business-24075010|title=Twitter plans stock market listing|date=September 12, 2013|accessdate=September 13, 2013}}</ref>
 
|-
 
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| 2013 || October 4 || Financial/legal || Twitter releases an 800-page prospectus in preparation for the IPO.<ref name="filing">{{cite news|title=Business Highlights |url=http://articles.washingtonpost.com/2013-10-04/business/42711206_1_government-shutdown-ipo-documents-housing-recovery |accessdate=12 October 2013 |newspaper=The Washington Post |date=4 October 2013 }}{{dead link|date=September 2016|bot=medic}}{{cbignore|bot=medic}}</ref>  
 
| 2013 || October 4 || Financial/legal || Twitter releases an 800-page prospectus in preparation for the IPO.<ref name="filing">{{cite news|title=Business Highlights |url=http://articles.washingtonpost.com/2013-10-04/business/42711206_1_government-shutdown-ipo-documents-housing-recovery |accessdate=12 October 2013 |newspaper=The Washington Post |date=4 October 2013 }}{{dead link|date=September 2016|bot=medic}}{{cbignore|bot=medic}}</ref>  
 
|-
 
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| 2013 || November 6–7 || Financial/legal || On November 6, 70 million shares<ref>{{cite web|title=Interesting Numbers From Twitter's IPO|url=http://abcnews.go.com/Technology/wireStory/interesting-numbers-twitters-ipo-20824494|date=November 8, 2013|publisher=[[ABC News]]|accessdate=November 8, 2013}}</ref> are priced at US$26 and issued by lead underwriter [[Goldman Sachs]].<ref>{{cite web|title=Twitter prices IPO at $26 per share|url=https://finance.yahoo.com/news/twitter-raises--xx-billion-in-ipo-190114410.html|date=November 6, 2013|publisher=[[Yahoo! Finance]]|accessdate=November 8, 2013}}</ref> On November 7, trading of the shares begins on the [[New York Stock Exchange]]. The share closes at US$44.90, giving the company a valuation of around US$31 billion.<ref>{{cite news|title=Twitter shares jump 73% in market debut|url=http://www.bbc.co.uk/news/business-24851054|date=November 7, 2013|publisher=[[BBC News]]|accessdate=November 8, 2013}}</ref>
+
| 2013 || November 6–7 || Financial/legal || On November 6, 70 million shares<ref>{{cite web|title=Interesting Numbers From Twitter's IPO|url=http://abcnews.go.com/Technology/wireStory/interesting-numbers-twitters-ipo-20824494|date=November 8, 2013|publisher=[[wikipedia:ABC News|ABC News]]|accessdate=November 8, 2013}}</ref> are priced at US$26 and issued by lead underwriter [[wikipedia:Goldman Sachs|Goldman Sachs]].<ref>{{cite web|title=Twitter prices IPO at $26 per share|url=https://finance.yahoo.com/news/twitter-raises--xx-billion-in-ipo-190114410.html|date=November 6, 2013|publisher=[[wikipedia:Yahoo! Finance|Yahoo! Finance]]|accessdate=November 8, 2013}}</ref> On November 7, trading of the shares begins on the [[wikipedia:New York Stock Exchange|New York Stock Exchange]]. The share closes at US$44.90, giving the company a valuation of around US$31 billion.<ref>{{cite news|title=Twitter shares jump 73% in market debut|url=http://www.bbc.co.uk/news/business-24851054|date=November 7, 2013|publisher=[[wikipedia:BBC News|BBC News]]|accessdate=November 8, 2013}}</ref>
 
|-
 
|-
 
| 2014 || June 19 || Acquisition || Twitter acquires SnappyTV.<ref>{{cite news | url=http://money.cnn.com/2014/06/19/technology/social/twitter-snappytv/index.html | title=Twitter wants to be your TV companion | work=CNN Money | accessdate=June 19, 2014}}</ref>
 
| 2014 || June 19 || Acquisition || Twitter acquires SnappyTV.<ref>{{cite news | url=http://money.cnn.com/2014/06/19/technology/social/twitter-snappytv/index.html | title=Twitter wants to be your TV companion | work=CNN Money | accessdate=June 19, 2014}}</ref>
 
|-
 
|-
| 2014 || June 30 || Acquisition || Twitter confirms acquisition of mobile ad retargeting startup TapCommerce.<ref>{{cite web|url=http://recode.net/2014/06/30/twitter-scoops-up-adtech-firm-tap-commerce-for-around-100-million/|title = Twitter Scoops Up AdTech Firm Tap Commerce for Around $100 Million|last = Fried|first = Ina|date = June 30, 2014|accessdate = September 3, 2014|publisher = [[Re/code]]}}</ref>
+
| 2014 || June 30 || Acquisition || Twitter confirms acquisition of mobile ad retargeting startup TapCommerce.<ref>{{cite web|url=http://recode.net/2014/06/30/twitter-scoops-up-adtech-firm-tap-commerce-for-around-100-million/|title = Twitter Scoops Up AdTech Firm Tap Commerce for Around $100 Million|last = Fried|first = Ina|date = June 30, 2014|accessdate = September 3, 2014|publisher = [[wikipedia:Re/code|Re/code]]}}</ref>
 
|-
 
|-
| 2014 || July 31 || Acquisition || Twitter acquires password security startup Mitro and open sources the product.<ref>{{cite web|url = http://techcrunch.com/2014/07/31/twitter-mitro/|title = Twitter Acquires Password Security Startup Mitro, Open Sources Its Product|author = Cutler|first = Kim-Mai|publisher = ''[[TechCrunch]]''}}</ref>
+
| 2014 || July 31 || Acquisition || Twitter acquires password security startup Mitro and open sources the product.<ref>{{cite web|url = http://techcrunch.com/2014/07/31/twitter-mitro/|title = Twitter Acquires Password Security Startup Mitro, Open Sources Its Product|author = Cutler|first = Kim-Mai|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2014 || November 12 || Product, userbase || Twitter announces "Instant Timeline"—a way to show users who have just created accounts interesting content even before they have followed anybody. Around the same time, Twitter announces that it will make the timeline more customized, highlighting to a user the most important tweets while they were away, rather than simply showing a reverse chronological feed. Other features announced include better video capability and the ability to share public tweets privately with one's followers to discuss them.<ref>{{cite web|url=http://techcrunch.com/2014/11/12/twitter-instant-timeline/|title = Twitter Will Onboard Users With "Instant Timeline", Inject Top Tweets From "While You Were Away"|date = November 12, 2014|accessdate = December 11, 2014|publisher = ''[[TechCrunch]]''}}</ref>
+
| 2014 || November 12 || Product, userbase || Twitter announces "Instant Timeline"—a way to show users who have just created accounts interesting content even before they have followed anybody. Around the same time, Twitter announces that it will make the timeline more customized, highlighting to a user the most important tweets while they were away, rather than simply showing a reverse chronological feed. Other features announced include better video capability and the ability to share public tweets privately with one's followers to discuss them.<ref>{{cite web|url=http://techcrunch.com/2014/11/12/twitter-instant-timeline/|title = Twitter Will Onboard Users With "Instant Timeline", Inject Top Tweets From "While You Were Away"|date = November 12, 2014|accessdate = December 11, 2014|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2014 || December 2 || Product || Twitter announces a new suite of anti-harassment tools and promises faster response times for abuse complaints.<ref>{{cite web|url=http://techcrunch.com/2014/12/02/twitter-releases-new-suite-of-anti-harassment-tools-promises-faster-response-times/|title = Twitter Releases New Suite Of Anti-Harassment Tools, Promises Faster Response Times For Dealing With Abuse|last = Perez|first = Sarah|date = December 2, 2014|accessdate = December 11, 2014|publisher = ''[[TechCrunch]]''}}</ref>
+
| 2014 || December 2 || Product || Twitter announces a new suite of anti-harassment tools and promises faster response times for abuse complaints.<ref>{{cite web|url=http://techcrunch.com/2014/12/02/twitter-releases-new-suite-of-anti-harassment-tools-promises-faster-response-times/|title = Twitter Releases New Suite Of Anti-Harassment Tools, Promises Faster Response Times For Dealing With Abuse|last = Perez|first = Sarah|date = December 2, 2014|accessdate = December 11, 2014|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2015 || January 20 || Acquisition || Twitter acquires India-based mobile marketing startup ZipDial.<ref>{{cite web|url=http://dealbook.nytimes.com/2015/01/20/twitter-acquires-indian-start-up/?_r=0|title = Twitter Acquires ZipDial, an Indian Start-Up|author = Michael J. De La Merced|date = January 20, 2015|accessdate = January 25, 2015|publisher = ''[[New York Times]]'' (Dealbook blog)}}</ref><ref>{{cite web|url=http://techcrunch.com/2015/01/20/emerging-market-innovation/|title = Twitter’s Acquisition Of ZipDial Proves There’s Tech Innovation In Emerging Markets|last = Russell|first = Jon|date = January 20, 2015|accessdate = January 25, 2015|publisher = ''[[TechCrunch]]''}}</ref>
+
| 2015 || January 20 || Acquisition || Twitter acquires India-based mobile marketing startup ZipDial.<ref>{{cite web|url=http://dealbook.nytimes.com/2015/01/20/twitter-acquires-indian-start-up/?_r=0|title = Twitter Acquires ZipDial, an Indian Start-Up|author = Michael J. De La Merced|date = January 20, 2015|accessdate = January 25, 2015|publisher = ''[[wikipedia:New York Times|New York Times]]'' (Dealbook blog)}}</ref><ref>{{cite web|url=http://techcrunch.com/2015/01/20/emerging-market-innovation/|title = Twitter’s Acquisition Of ZipDial Proves There’s Tech Innovation In Emerging Markets|last = Russell|first = Jon|date = January 20, 2015|accessdate = January 25, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2015 || January 21 || Product || Twitter officially launches its "While You Were Away" feature.<ref>{{cite web|url=http://techcrunch.com/2015/01/21/twitter-launches-while-you-were-away/|title = Twitter Officially Launches Its "While You Were Away" Recap Feature|last = Ha|first = Anthony|date = January 21, 2015|accessdate = January 25, 2015|publisher = ''[[TechCrunch]]''}}</ref>
+
| 2015 || January 21 || Product || Twitter officially launches its "While You Were Away" feature.<ref>{{cite web|url=http://techcrunch.com/2015/01/21/twitter-launches-while-you-were-away/|title = Twitter Officially Launches Its "While You Were Away" Recap Feature|last = Ha|first = Anthony|date = January 21, 2015|accessdate = January 25, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2015 || February 11 || Acquisition || Twitter announces that it has acquired Niche, an ad network for social media stars, founded by [[Rob Fishman]] and Darren Lachtman.<ref>{{Cite web|url=http://social.techcrunch.com/2015/02/11/twitter-acquires-niche-a-startup-that-helps-advertisers-work-with-social-media-celebrities/|title=Twitter Acquires Niche, A Startup That Helps Advertisers Work With Social Media Celebrities|last=Ha|first=Anthony|website=TechCrunch|access-date=April 10, 2016}}</ref> The acquisition price is reportedly $50 million.<ref>{{Cite web|url=http://www.businessinsider.com/twitter-buys-niche-an-ad-network-for-vine-stars-2015-2|title=Twitter buys Niche, an ad network for Vine stars, for about $50 million in cash and stock|website=Business Insider|access-date=April 10, 2016}}</ref>
+
| 2015 || February 11 || Acquisition || Twitter announces that it has acquired Niche, an ad network for social media stars, founded by [[wikipedia:Rob Fishman|Rob Fishman]] and Darren Lachtman.<ref>{{Cite web|url=http://social.techcrunch.com/2015/02/11/twitter-acquires-niche-a-startup-that-helps-advertisers-work-with-social-media-celebrities/|title=Twitter Acquires Niche, A Startup That Helps Advertisers Work With Social Media Celebrities|last=Ha|first=Anthony|website=TechCrunch|access-date=April 10, 2016}}</ref> The acquisition price is reportedly $50 million.<ref>{{Cite web|url=http://www.businessinsider.com/twitter-buys-niche-an-ad-network-for-vine-stars-2015-2|title=Twitter buys Niche, an ad network for Vine stars, for about $50 million in cash and stock|website=Business Insider|access-date=April 10, 2016}}</ref>
 
|-
 
|-
| 2015 || February 17 || Product || Twitter lets people share team accounts without sharing passwords, with its new TweetDeck Team feature.<ref>{{cite web|url=https://blog.twitter.com/2015/introducing-tweetdeck-teams|title = Introducing TweetDeck Teams|last = Zima|first = Amy|date = February 17, 2015|accessdate = April 5, 2015|publisher = [[Twitter]]}}</ref><ref>{{cite web|url=http://techcrunch.com/2015/02/17/share-twitter-account/|title = Twitter Finally Lets You Share Team Accounts Without Sharing Passwords|date = February 17, 2015|accessdate = April 5, 2015|publisher = ''[[TechCrunch]]''|last = Ha|first = Anthony}}</ref><ref>{{cite web|url=http://www.geekwire.com/2015/twitter-allows-password-free-account-sharing-with-new-tweetdeck-teams-feature/|title = Twitter allows password-free account sharing with new TweetDeck Teams feature|author = Blair Hanley Frank|date = February 17, 2015|accessdate = April 5, 2015|publisher = ''[[GeekWire]]''}}</ref>
+
| 2015 || February 17 || Product || Twitter lets people share team accounts without sharing passwords, with its new TweetDeck Team feature.<ref>{{cite web|url=https://blog.twitter.com/2015/introducing-tweetdeck-teams|title = Introducing TweetDeck Teams|last = Zima|first = Amy|date = February 17, 2015|accessdate = April 5, 2015|publisher = [[wikipedia:Twitter|Twitter]]}}</ref><ref>{{cite web|url=http://techcrunch.com/2015/02/17/share-twitter-account/|title = Twitter Finally Lets You Share Team Accounts Without Sharing Passwords|date = February 17, 2015|accessdate = April 5, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''|last = Ha|first = Anthony}}</ref><ref>{{cite web|url=http://www.geekwire.com/2015/twitter-allows-password-free-account-sharing-with-new-tweetdeck-teams-feature/|title = Twitter allows password-free account sharing with new TweetDeck Teams feature|author = Blair Hanley Frank|date = February 17, 2015|accessdate = April 5, 2015|publisher = ''[[wikipedia:GeekWire|GeekWire]]''}}</ref>
 
|-
 
|-
| 2015 || March 5 || Product, monetization || Twitter announces that it will tap data from its Marketing Platform Partners and allow publishers to target ads to specific audiences based on that data.<ref>{{cite web|url=https://blog.twitter.com/2015/introducing-partner-audiences|title = Introducing partner audiences|last = Boston|first = Kyle|date = March 5, 2015|accessdate = April 5, 2015|publisher = [[Twitter]]}}</ref><ref>{{cite web|url=http://techcrunch.com/2015/03/05/twitter-partner-audiences/|title = Twitter Taps Partner Data To Help Marketers Target Their Ads|last = Ha|first = Anthony|date = March 5, 2015|accessdate = April 5, 2015|publisher = ''[[TechCrunch]]''}}</ref>
+
| 2015 || March 5 || Product, monetization || Twitter announces that it will tap data from its Marketing Platform Partners and allow publishers to target ads to specific audiences based on that data.<ref>{{cite web|url=https://blog.twitter.com/2015/introducing-partner-audiences|title = Introducing partner audiences|last = Boston|first = Kyle|date = March 5, 2015|accessdate = April 5, 2015|publisher = [[wikipedia:Twitter|Twitter]]}}</ref><ref>{{cite web|url=http://techcrunch.com/2015/03/05/twitter-partner-audiences/|title = Twitter Taps Partner Data To Help Marketers Target Their Ads|last = Ha|first = Anthony|date = March 5, 2015|accessdate = April 5, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2015 || March 9 || Acquisition || Twitter acquires Periscope, a live video streaming startup.<ref>{{cite web|url=http://www.wsj.com/articles/twitter-acquires-live-video-streaming-startup-periscope-1425938498|title = Twitter Acquires Live-Video Streaming Startup Periscope. Social-media firm pays slightly less than $100 million for developer whose application is in beta testing|last = Koh|first = Yoree|last2 = Rusli|first2 = Evelyn|date = March 9, 2015|accessdate = May 8, 2015|publisher = ''[[Wall Street Journal]]''}}</ref><ref>{{cite web|url=http://www.businessinsider.com/twitter-acquires-periscope-for-a-sizable-amount-2015-3|title = Twitter quietly bought a video startup that hasn't launched yet, Periscope|last = Shontell|first = Alyson|date = March 9, 2015|accessdate = May 8, 2015|publisher = ''[[Business Insider]]''}}</ref>
+
| 2015 || March 9 || Acquisition || Twitter acquires Periscope, a live video streaming startup.<ref>{{cite web|url=http://www.wsj.com/articles/twitter-acquires-live-video-streaming-startup-periscope-1425938498|title = Twitter Acquires Live-Video Streaming Startup Periscope. Social-media firm pays slightly less than $100 million for developer whose application is in beta testing|last = Koh|first = Yoree|last2 = Rusli|first2 = Evelyn|date = March 9, 2015|accessdate = May 8, 2015|publisher = ''[[wikipedia:Wall Street Journal|Wall Street Journal]]''}}</ref><ref>{{cite web|url=http://www.businessinsider.com/twitter-acquires-periscope-for-a-sizable-amount-2015-3|title = Twitter quietly bought a video startup that hasn't launched yet, Periscope|last = Shontell|first = Alyson|date = March 9, 2015|accessdate = May 8, 2015|publisher = ''[[wikipedia:Business Insider|Business Insider]]''}}</ref>
 
|-
 
|-
| 2015 || March 23 || Product || Twitter starts rolling out a "Quality Filter" to verified iOS users so that people can more easily keep bullying and unpleasant tweets out of their stream. A number of news articles commented that it worked quite well.<ref>{{cite web|url=http://techcrunch.com/2015/03/23/twitter-quality-filter/|title = Twitter’s New "Quality Filter" Starts Rolling Out To Verified iOS Users|last = Shu|first = Catherine|date = March 23, 2015|accessdate = April 5, 2015|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://mashable.com/2015/03/24/twitter-content-filter/|title = Twitter takes the fight to abusers with new quality filter|last = Pachal|first = Peter|date = March 24, 2015|accessdate = April 5, 2015|publisher = ''[[Mashable]]''}}</ref><ref>{{cite web|url=http://www.washingtonpost.com/news/the-intersect/wp/2015/03/31/this-is-how-twitters-new-anti-harassment-filter-works-surprise-it-works-really-well/|title = This is how Twitter’s new anti-harassment filter works. (Surprise! It works really well.)|last = Dewey|first = Caitlin|date = March 31, 2015|accessdate = April 5, 2015|publisher = ''[[Washington Post]]''}}</ref><ref>{{cite web|url=http://time.com/3756861/twitter-quality-filter/|title = Twitter Rolls Out ‘Quality Filter’ to Combat Abuse|last = Luckerson|first = Victor|date = March 24, 2015|accessdate = April 5, 2015|publisher = ''[[TechCrunch]]''}}</ref>
+
| 2015 || March 23 || Product || Twitter starts rolling out a "Quality Filter" to verified iOS users so that people can more easily keep bullying and unpleasant tweets out of their stream. A number of news articles commented that it worked quite well.<ref>{{cite web|url=http://techcrunch.com/2015/03/23/twitter-quality-filter/|title = Twitter’s New "Quality Filter" Starts Rolling Out To Verified iOS Users|last = Shu|first = Catherine|date = March 23, 2015|accessdate = April 5, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://mashable.com/2015/03/24/twitter-content-filter/|title = Twitter takes the fight to abusers with new quality filter|last = Pachal|first = Peter|date = March 24, 2015|accessdate = April 5, 2015|publisher = ''[[wikipedia:Mashable|Mashable]]''}}</ref><ref>{{cite web|url=http://www.washingtonpost.com/news/the-intersect/wp/2015/03/31/this-is-how-twitters-new-anti-harassment-filter-works-surprise-it-works-really-well/|title = This is how Twitter’s new anti-harassment filter works. (Surprise! It works really well.)|last = Dewey|first = Caitlin|date = March 31, 2015|accessdate = April 5, 2015|publisher = ''[[wikipedia:Washington Post|Washington Post]]''}}</ref><ref>{{cite web|url=http://time.com/3756861/twitter-quality-filter/|title = Twitter Rolls Out ‘Quality Filter’ to Combat Abuse|last = Luckerson|first = Victor|date = March 24, 2015|accessdate = April 5, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2015 || March 31 || Product || Twitter publicly launches Curator, a real-time search and filtering feature for media outlets, that some commentators call a [[Storify]] competitor.<ref>{{cite web|url=https://blog.twitter.com/2015/introducing-curator-a-new-way-to-find-and-display-great-twitter-content|title = Introducing Curator, a new way to find and display great Twitter content|date = March 31, 2015|accessdate = April 5, 2015|publisher = [[Twitter]]|last = Dennebaum|first = Matt}}</ref><ref>{{cite web|url = http://techcrunch.com/2015/03/31/twitter-curator/|title = Twitter Publicly Launches Curator, Its Real-Time Search And Filtering Tool For Media Outlets|last = Perez|first = Sarah|date = March 31, 2015|accessdate = April 5, 2015|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://mashable.com/2015/03/31/twitters-curator-launch/|title = Twitter launches Curator, its free Storify competitor|last = Bell|first = Karissa|date = March 31, 2015|accessdate = April 5, 2015|publisher = ''[[Mashable]]''}}</ref>
+
| 2015 || March 31 || Product || Twitter publicly launches Curator, a real-time search and filtering feature for media outlets, that some commentators call a [[wikipedia:Storify|Storify]] competitor.<ref>{{cite web|url=https://blog.twitter.com/2015/introducing-curator-a-new-way-to-find-and-display-great-twitter-content|title = Introducing Curator, a new way to find and display great Twitter content|date = March 31, 2015|accessdate = April 5, 2015|publisher = [[wikipedia:Twitter|Twitter]]|last = Dennebaum|first = Matt}}</ref><ref>{{cite web|url = http://techcrunch.com/2015/03/31/twitter-curator/|title = Twitter Publicly Launches Curator, Its Real-Time Search And Filtering Tool For Media Outlets|last = Perez|first = Sarah|date = March 31, 2015|accessdate = April 5, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://mashable.com/2015/03/31/twitters-curator-launch/|title = Twitter launches Curator, its free Storify competitor|last = Bell|first = Karissa|date = March 31, 2015|accessdate = April 5, 2015|publisher = ''[[wikipedia:Mashable|Mashable]]''}}</ref>
 
|-
 
|-
 
| 2015 || April 2 || Acquisition || Twitter acquires TenXer, a platform for developers and engineers to collaborate more effectively.<ref>{{cite web|url=http://techcrunch.com/2015/04/02/confirmed-twitter-buys-tenxer-for-under-50m-to-improve-its-tools-for-engineers/|title =  
 
| 2015 || April 2 || Acquisition || Twitter acquires TenXer, a platform for developers and engineers to collaborate more effectively.<ref>{{cite web|url=http://techcrunch.com/2015/04/02/confirmed-twitter-buys-tenxer-for-under-50m-to-improve-its-tools-for-engineers/|title =  
Confirmed: Twitter Buys TenXer For Under $50M To Improve Its Tools For Engineers|last = Lunden|first = Ingrid|date = April 2, 2015|accessdate = May 8, 2015|publisher = ''[[TechCrunch]]''}}</ref>
+
Confirmed: Twitter Buys TenXer For Under $50M To Improve Its Tools For Engineers|last = Lunden|first = Ingrid|date = April 2, 2015|accessdate = May 8, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2015 || April 28 || Acquisition || Twitter acquires with $532 million in stock TellApart, an ad technology company with rich user profiles, and partners with [[DoubleClick]], Google's ad exchange.<ref>{{cite web|url=https://blog.twitter.com/2015/welcoming-tellapart-to-the-flock|title = Welcoming TellApart to the flock|last = Well|first = Kevin|date = April 28, 2015|accessdate = May 8, 2015|publisher = [[Twitter]]}}</ref><ref>{{cite web|url=http://venturebeat.com/2015/04/28/twitter-acquires-ad-technology-company-tellapart-and-partners-with-googles-doubleclick/|title = Twitter acquires ad technology company TellApart and partners with Google’s DoubleClick|last = Protalinksi|first = Emil|date = April 28, 2015|accessdate = May 8, 2015|publisher = ''[[VentureBeat]]''}}</ref><ref>{{cite web|url=http://adage.com/article/digital/twitter-acquires-tellapart-a-retail-retargeter/298300/|title = Twitter Acquires TellApart, a Retail Retargeter That Could Supercharge Its 'Buy' Button|last = Kantrowitz|first = Alex|date = April 28, 2015|accessdate = May 8, 2015|publisher = [[AdAge]]}}</ref>
+
| 2015 || April 28 || Acquisition || Twitter acquires with $532 million in stock TellApart, an ad technology company with rich user profiles, and partners with [[wikipedia:DoubleClick|DoubleClick]], Google's ad exchange.<ref>{{cite web|url=https://blog.twitter.com/2015/welcoming-tellapart-to-the-flock|title = Welcoming TellApart to the flock|last = Well|first = Kevin|date = April 28, 2015|accessdate = May 8, 2015|publisher = [[wikipedia:Twitter|Twitter]]}}</ref><ref>{{cite web|url=http://venturebeat.com/2015/04/28/twitter-acquires-ad-technology-company-tellapart-and-partners-with-googles-doubleclick/|title = Twitter acquires ad technology company TellApart and partners with Google’s DoubleClick|last = Protalinksi|first = Emil|date = April 28, 2015|accessdate = May 8, 2015|publisher = ''[[wikipedia:VentureBeat|VentureBeat]]''}}</ref><ref>{{cite web|url=http://adage.com/article/digital/twitter-acquires-tellapart-a-retail-retargeter/298300/|title = Twitter Acquires TellApart, a Retail Retargeter That Could Supercharge Its 'Buy' Button|last = Kantrowitz|first = Alex|date = April 28, 2015|accessdate = May 8, 2015|publisher = [[wikipedia:AdAge|AdAge]]}}</ref>
 
|-
 
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| 2015 || April 28 || Financial || Twitter shares fall in price by about 18% based on their disappointing quarterly revenue ($436 million), earning, and user growth numbers.<ref>{{cite web|url=http://techcrunch.com/2015/04/28/twitter-collapses-18-in-wake-of-lackluster-q1-revenue-user-growth/|title = Twitter Collapses 18% In Wake Of Lackluster Q1 Revenue, User Growth|last = Wilhelm|first = Alex|date = April 28, 2015|accessdate = June 6, 2015|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://venturebeat.com/2015/04/28/twitter-misses-expectations-with-436m-in-revenue-but-beats-estimates-with-7-cents-eps/|title = Twitter shares plunge on Q1 revenue of $436M that missed expectations|last = Terdiman|first = Daniel|date = April 28, 2015|accessdate = June 6, 2015|publisher = ''[[VentureBeat]]''}}</ref><ref>{{cite web|url=http://www.usatoday.com/story/tech/2015/04/28/twitter-earnings-first-quarter/26518249/|title = Twitter shares plunge on revenue miss|last = Guynn|first = Jessica|date = April 29, 2015|accessdate = June 6, 2015|publisher = ''[[USA Today]]''}}</ref> The drop begins even before Twitter's official announcement because the results are scraped by financial intelligence firm Selerity from Twitter's website.<ref>{{cite web|url=http://techcrunch.com/2015/04/28/oops/|title = Falling TWTR Temporarily Halted After Results Published Early — On Twitter|last = Ha|first = Anthony|date = April 28, 2015|accessdate = June 6, 2015|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://www.fool.com/investing/general/2015/04/30/dont-blame-selerity-for-twitter-incs-plunge.aspx|title = Don't Blame Selerity for Twitter Inc.'s Plunge|last = Duprey|first = Rich|date = April 30, 2015|accessdate = June 6, 2015|publisher = [[Motley Fool]]}}</ref>
+
| 2015 || April 28 || Financial || Twitter shares fall in price by about 18% based on their disappointing quarterly revenue ($436 million), earning, and user growth numbers.<ref>{{cite web|url=http://techcrunch.com/2015/04/28/twitter-collapses-18-in-wake-of-lackluster-q1-revenue-user-growth/|title = Twitter Collapses 18% In Wake Of Lackluster Q1 Revenue, User Growth|last = Wilhelm|first = Alex|date = April 28, 2015|accessdate = June 6, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://venturebeat.com/2015/04/28/twitter-misses-expectations-with-436m-in-revenue-but-beats-estimates-with-7-cents-eps/|title = Twitter shares plunge on Q1 revenue of $436M that missed expectations|last = Terdiman|first = Daniel|date = April 28, 2015|accessdate = June 6, 2015|publisher = ''[[wikipedia:VentureBeat|VentureBeat]]''}}</ref><ref>{{cite web|url=http://www.usatoday.com/story/tech/2015/04/28/twitter-earnings-first-quarter/26518249/|title = Twitter shares plunge on revenue miss|last = Guynn|first = Jessica|date = April 29, 2015|accessdate = June 6, 2015|publisher = ''[[wikipedia:USA Today|USA Today]]''}}</ref> The drop begins even before Twitter's official announcement because the results are scraped by financial intelligence firm Selerity from Twitter's website.<ref>{{cite web|url=http://techcrunch.com/2015/04/28/oops/|title = Falling TWTR Temporarily Halted After Results Published Early — On Twitter|last = Ha|first = Anthony|date = April 28, 2015|accessdate = June 6, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://www.fool.com/investing/general/2015/04/30/dont-blame-selerity-for-twitter-incs-plunge.aspx|title = Don't Blame Selerity for Twitter Inc.'s Plunge|last = Duprey|first = Rich|date = April 30, 2015|accessdate = June 6, 2015|publisher = [[wikipedia:Motley Fool|Motley Fool]]}}</ref>
 
|-
 
|-
| 2015 || May 18 || Product || Twitter completes the rollout of its new search interface for logged-in web users.<ref>{{cite web|url=http://techcrunch.com/2015/05/18/twitters-new-search-results-interface-expands-to-all-web-users/|title = Twitter’s New Search Results Interface Expands To All Web Users|last = Perez|first = Sarah|date = May 18, 2015|accessdate = June 6, 2015|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://thenextweb.com/twitter/2015/05/19/twitter-rolls-out-new-search-results-interface-on-its-site/|title = Twitter rolls out new search results interface on its site|last = Ghoshal|first = Abhimanyu|date = May 19, 2015|accessdate = June 6, 2015|publisher = ''The Next Web''}}</ref>
+
| 2015 || May 18 || Product || Twitter completes the rollout of its new search interface for logged-in web users.<ref>{{cite web|url=http://techcrunch.com/2015/05/18/twitters-new-search-results-interface-expands-to-all-web-users/|title = Twitter’s New Search Results Interface Expands To All Web Users|last = Perez|first = Sarah|date = May 18, 2015|accessdate = June 6, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://thenextweb.com/twitter/2015/05/19/twitter-rolls-out-new-search-results-interface-on-its-site/|title = Twitter rolls out new search results interface on its site|last = Ghoshal|first = Abhimanyu|date = May 19, 2015|accessdate = June 6, 2015|publisher = ''The Next Web''}}</ref>
 
|-
 
|-
| 2015 || May 19 || Use in other products || [[Google]] adds tweets to its mobile [[Google Search|search results]].<ref>{{cite web|url=http://googleblog.blogspot.com/2015/05/tweets-take-flight-in-google-app.html|title = Tweets take flight in the Google app|date = May 19, 2015|accessdate = June 6, 2015|publisher = Official Google Blog}}</ref><ref>{{cite web|url=http://techcrunch.com/2015/05/19/google-adds-tweets-to-its-mobile-search-results/|title = Google Adds Tweets To Its Mobile Search Results|date = May 19, 2015|accessdate = June 6, 2015|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=http://thenextweb.com/insider/2015/05/19/google-adds-twitter-to-mobile-search-results/|title = Google adds rich Twitter cards to mobile search results|last = Swanner|first = Nate|date = May 19, 2015|accessdate = June 6, 2015|publisher = ''The Next Web''}}</ref><ref>{{cite web|url = http://variety.com/2015/digital/news/google-makes-peace-with-twitter-adds-tweets-to-mobile-search-1201500757/|title = Google Makes Peace With Twitter, Adds Tweets to Mobile Search|date = May 19, 2015|accessdate = June 6, 2015|publisher = ''[[Variety (magazine)|Variety]]''}}</ref>
+
| 2015 || May 19 || Use in other products || [[wikipedia:Google|Google]] adds tweets to its mobile [[wikipedia:Google Search|search results]].<ref>{{cite web|url=http://googleblog.blogspot.com/2015/05/tweets-take-flight-in-google-app.html|title = Tweets take flight in the Google app|date = May 19, 2015|accessdate = June 6, 2015|publisher = Official Google Blog}}</ref><ref>{{cite web|url=http://techcrunch.com/2015/05/19/google-adds-tweets-to-its-mobile-search-results/|title = Google Adds Tweets To Its Mobile Search Results|date = May 19, 2015|accessdate = June 6, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=http://thenextweb.com/insider/2015/05/19/google-adds-twitter-to-mobile-search-results/|title = Google adds rich Twitter cards to mobile search results|last = Swanner|first = Nate|date = May 19, 2015|accessdate = June 6, 2015|publisher = ''The Next Web''}}</ref><ref>{{cite web|url = http://variety.com/2015/digital/news/google-makes-peace-with-twitter-adds-tweets-to-mobile-search-1201500757/|title = Google Makes Peace With Twitter, Adds Tweets to Mobile Search|date = May 19, 2015|accessdate = June 6, 2015|publisher = ''[[wikipedia:Variety (magazine)|Variety]]''}}</ref>
 
|-
 
|-
| 2015 || June 11 (announcement), July 1 (planned change) || Company operation || [[Dick Costolo]] steps down as CEO, co-founder [[Jack Dorsey]] returns as interim CEO. Costolo will remain on the Board. Shares are up 3% on the announcement.<ref>{{cite web|url=http://techcrunch.com/2015/06/11/twitter-announces-ceo-dick-costolo-stepping-down-jack-dorsey-named-interim-ceo/|title = Twitter’s CEO Dick Costolo Chooses To Step Down, Jack Dorsey Named Interim CEO, Shares Up 3%|date = June 11, 2015|accessdate = June 11, 2015|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url=https://www.nytimes.com/2015/06/12/technology/dick-costolo-twitter-ceo-jack-dorsey.html|title = Twitter’s C.E.O., Dick Costolo, Is Set to Exit, Feeling Heat of Criticism|last = Goel|first = Vindu|last2 = Isaac|first2 = Mike|date = June 11, 2015|accessdate = June 11, 2015|publisher = ''[[New York Times]]''}}</ref><ref>{{cite web|url=http://www.wsj.com/articles/twitter-ceo-costolo-stepping-down-1434053738|title = Twitter CEO Dick Costolo Stepping Down. Chairman Jack Dorsey to be interim CEO|last = Koh|first = Yoree|date = June 11, 2015|accessdate = June 11, 2015|publisher = ''[[Wall Street Journal]]''}}</ref>
+
| 2015 || June 11 (announcement), July 1 (planned change) || Company operation || [[wikipedia:Dick Costolo|Dick Costolo]] steps down as CEO, co-founder [[wikipedia:Jack Dorsey|Jack Dorsey]] returns as interim CEO. Costolo will remain on the Board. Shares are up 3% on the announcement.<ref>{{cite web|url=http://techcrunch.com/2015/06/11/twitter-announces-ceo-dick-costolo-stepping-down-jack-dorsey-named-interim-ceo/|title = Twitter’s CEO Dick Costolo Chooses To Step Down, Jack Dorsey Named Interim CEO, Shares Up 3%|date = June 11, 2015|accessdate = June 11, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url=https://www.nytimes.com/2015/06/12/technology/dick-costolo-twitter-ceo-jack-dorsey.html|title = Twitter’s C.E.O., Dick Costolo, Is Set to Exit, Feeling Heat of Criticism|last = Goel|first = Vindu|last2 = Isaac|first2 = Mike|date = June 11, 2015|accessdate = June 11, 2015|publisher = ''[[wikipedia:New York Times|New York Times]]''}}</ref><ref>{{cite web|url=http://www.wsj.com/articles/twitter-ceo-costolo-stepping-down-1434053738|title = Twitter CEO Dick Costolo Stepping Down. Chairman Jack Dorsey to be interim CEO|last = Koh|first = Yoree|date = June 11, 2015|accessdate = June 11, 2015|publisher = ''[[wikipedia:Wall Street Journal|Wall Street Journal]]''}}</ref>
 
|-
 
|-
 
| 2015 || June 17|| Acquisition || Twitter acquires Cambridge-based machine learning startup Whetlab.<ref>{{cite web|url=http://techcrunch.com/2015/04/02/confirmed-twitter-buys-tenxer-for-under-50m-to-improve-its-tools-for-engineers/|title = Twitter Acquires Machine Learning Startup Whetlab
 
| 2015 || June 17|| Acquisition || Twitter acquires Cambridge-based machine learning startup Whetlab.<ref>{{cite web|url=http://techcrunch.com/2015/04/02/confirmed-twitter-buys-tenxer-for-under-50m-to-improve-its-tools-for-engineers/|title = Twitter Acquires Machine Learning Startup Whetlab
|last = Sara|first = Perez|date = June 17, 2015|accessdate = June 17, 2015|publisher = ''[[TechCrunch]]''}}</ref>
+
|last = Sara|first = Perez|date = June 17, 2015|accessdate = June 17, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2015 || September 30 || Product || Twitter expands Buy buttons through partnerships with [[Bigcommerce]], [[Demandware]], and [[Shopify]].<ref>{{cite web|url = https://blog.twitter.com/2015/more-ways-to-sell-directly-on-twitter|title = More ways to sell directly on Twitter|date = September 30, 2015|accessdate = October 18, 2015|last = Hubbard|first = Nathan|publisher = [[Twitter]]}}</ref><ref>{{cite web|url = http://techcrunch.com/2015/09/30/twitter-buy-more-now/|title = Twitter Expands ‘Buy’ Buttons To Bigcommerce, Demandware, Shopify… And Best Buy|last = Lunden|first = Ingrid|date = September 30, 2015|accessdate = October 18, 2015|publisher = ''[[TechCrunch]]''}}</ref>
+
| 2015 || September 30 || Product || Twitter expands Buy buttons through partnerships with [[wikipedia:Bigcommerce|Bigcommerce]], [[wikipedia:Demandware|Demandware]], and [[wikipedia:Shopify|Shopify]].<ref>{{cite web|url = https://blog.twitter.com/2015/more-ways-to-sell-directly-on-twitter|title = More ways to sell directly on Twitter|date = September 30, 2015|accessdate = October 18, 2015|last = Hubbard|first = Nathan|publisher = [[wikipedia:Twitter|Twitter]]}}</ref><ref>{{cite web|url = http://techcrunch.com/2015/09/30/twitter-buy-more-now/|title = Twitter Expands ‘Buy’ Buttons To Bigcommerce, Demandware, Shopify… And Best Buy|last = Lunden|first = Ingrid|date = September 30, 2015|accessdate = October 18, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2015 || October 6 || Product || Twitter debuts Twitter Moments, a way for people to get a quick overview of important tweets or chains of tweets that occurred recently.<ref>{{cite web|url = http://techcrunch.com/2015/10/06/project-glacier/|title = Twitter Debuts Moments|last = Olanoff|first = Drew|date = October 6, 2015|accessdate = October 18, 2015|publisher = ''[[TechCrunch]]''}}</ref><ref>{{cite web|url = http://mashable.com/2015/07/05/twitter-project-lightning-moments/|title = Twitter's Project Lightning could be called 'Moments'|date = July 5, 2015|accessdate = October 18, 2015|last = Warren|first = Christina|publisher = ''[[Mashable]]''}}</ref>
+
| 2015 || October 6 || Product || Twitter debuts Twitter Moments, a way for people to get a quick overview of important tweets or chains of tweets that occurred recently.<ref>{{cite web|url = http://techcrunch.com/2015/10/06/project-glacier/|title = Twitter Debuts Moments|last = Olanoff|first = Drew|date = October 6, 2015|accessdate = October 18, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref><ref>{{cite web|url = http://mashable.com/2015/07/05/twitter-project-lightning-moments/|title = Twitter's Project Lightning could be called 'Moments'|date = July 5, 2015|accessdate = October 18, 2015|last = Warren|first = Christina|publisher = ''[[wikipedia:Mashable|Mashable]]''}}</ref>
 
|-
 
|-
| 2015 || October 14 || Company operation || [[Omid Kordestani]] leaves his job as Chief Business Officer at [[Google]] to become Executive Chairman at Twitter.<ref>{{cite web|url = http://techcrunch.com/2015/10/14/twitter-names-googles-omid-kordestani-as-its-new-executive-chairman/|title = Omid Kordestani Leaves Google, Joins Twitter As Its Executive Chairman|date = October 14, 2015|accessdate = October 18, 2015|publisher = ''[[TechCrunch]]''|last = Lunden|first = Ingrid}}</ref> His base salary is $50,000 and he is eligible for up to $12 million in stock based on the company's performance.<ref>{{cite web|url=http://venturebeat.com/2015/10/16/heres-how-much-twitter-offered-its-new-executive-chairman-omid-kordestani-to-join-the-company/|title = Here’s how much Twitter offered new chairman Omid Kordestani to join the company|last = Reader|first = Ruth|date = October 16, 2015|accessdate = October 18, 2015}}</ref><ref>{{cite web|url = http://www.newsweek.com/meet-omid-kordestani-twitter-new-executive-chairman-383382|title = http://www.newsweek.com/meet-omid-kordestani-twitter-new-executive-chairman-383382|last = Lee|first = Seung|publisher = ''[[NewsWeek]]''|date = October 14, 2015|accessdate = October 18, 2015}}</ref>
+
| 2015 || October 14 || Company operation || [[wikipedia:Omid Kordestani|Omid Kordestani]] leaves his job as Chief Business Officer at [[wikipedia:Google|Google]] to become Executive Chairman at Twitter.<ref>{{cite web|url = http://techcrunch.com/2015/10/14/twitter-names-googles-omid-kordestani-as-its-new-executive-chairman/|title = Omid Kordestani Leaves Google, Joins Twitter As Its Executive Chairman|date = October 14, 2015|accessdate = October 18, 2015|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''|last = Lunden|first = Ingrid}}</ref> His base salary is $50,000 and he is eligible for up to $12 million in stock based on the company's performance.<ref>{{cite web|url=http://venturebeat.com/2015/10/16/heres-how-much-twitter-offered-its-new-executive-chairman-omid-kordestani-to-join-the-company/|title = Here’s how much Twitter offered new chairman Omid Kordestani to join the company|last = Reader|first = Ruth|date = October 16, 2015|accessdate = October 18, 2015}}</ref><ref>{{cite web|url = http://www.newsweek.com/meet-omid-kordestani-twitter-new-executive-chairman-383382|title = http://www.newsweek.com/meet-omid-kordestani-twitter-new-executive-chairman-383382|last = Lee|first = Seung|publisher = ''[[wikipedia:NewsWeek|NewsWeek]]''|date = October 14, 2015|accessdate = October 18, 2015}}</ref>
 
|-
 
|-
| 2015 || November 3 || Product || Twitter replaces the Favorite button with a Like button and the star symbol (used to symbolize favoriting) with a heart symbol.<ref>{{cite web|url = https://blog.twitter.com/2015/hearts-on-twitter|title = Hearts on Twitter|date = November 3, 2015|accessdate = April 24, 2016|last = Kumar|first = Akarshan|publisher = [[Twitter]]}}</ref><ref>{{cite web|url = http://www.theverge.com/2015/11/3/9661180/twitter-vine-favorite-fav-likes-hearts|title =  Twitter officially kills off favorites and replaces them with likes. Stars dust|last = Newton|first = Casey|publisher = ''[[The Verge]]''|date = November 3, 2015|accessdate = April 24, 2016}}</ref><ref>{{cite web|url = http://techcrunch.com/2015/11/03/so-we-feel-heard/|title = Twitter Found Love In A Fave-Less Place|last = Constine|first = Josh|date = November 3, 2015|accessdate = April 24, 2016|publisher = ''[[TechCrunch]]''}}</ref> Twitter reports a 6% increase in usage of the feature after the change,<ref>{{cite web|url = http://techcrunch.com/2015/11/10/twitter-sees-6-increase-in-like-activity-after-first-week-of-hearts/|title = Twitter Sees 6% Increase In "Like" Activity After First Week Of Hearts|last = Olanoff|first = Drew|date = November 6, 2015|accessdate = April 24, 2016|publisher = ''[[TechCrunch]]''}}</ref> and also appears to be experimenting with offering a more diverse set of emojis, prompting commentators to draw parallels with Facebook's Reactions feature.<ref>{{cite web|url = http://techcrunch.com/2015/11/16/not-into-the-hearts-twitter-appears-to-be-testing-multi-emoji-reactions/|title = Not Into The Hearts? Twitter Appears To Be Testing Multi-Emoji Reactions|date = November 16, 2015|accessdate = April 24, 2016|publisher = ''[[TechCrunch]]''|last = Olanoff|first = Drew}}</ref>
+
| 2015 || November 3 || Product || Twitter replaces the Favorite button with a Like button and the star symbol (used to symbolize favoriting) with a heart symbol.<ref>{{cite web|url = https://blog.twitter.com/2015/hearts-on-twitter|title = Hearts on Twitter|date = November 3, 2015|accessdate = April 24, 2016|last = Kumar|first = Akarshan|publisher = [[wikipedia:Twitter|Twitter]]}}</ref><ref>{{cite web|url = http://www.theverge.com/2015/11/3/9661180/twitter-vine-favorite-fav-likes-hearts|title =  Twitter officially kills off favorites and replaces them with likes. Stars dust|last = Newton|first = Casey|publisher = ''[[wikipedia:The Verge|The Verge]]''|date = November 3, 2015|accessdate = April 24, 2016}}</ref><ref>{{cite web|url = http://techcrunch.com/2015/11/03/so-we-feel-heard/|title = Twitter Found Love In A Fave-Less Place|last = Constine|first = Josh|date = November 3, 2015|accessdate = April 24, 2016|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref> Twitter reports a 6% increase in usage of the feature after the change,<ref>{{cite web|url = http://techcrunch.com/2015/11/10/twitter-sees-6-increase-in-like-activity-after-first-week-of-hearts/|title = Twitter Sees 6% Increase In "Like" Activity After First Week Of Hearts|last = Olanoff|first = Drew|date = November 6, 2015|accessdate = April 24, 2016|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref> and also appears to be experimenting with offering a more diverse set of emojis, prompting commentators to draw parallels with Facebook's Reactions feature.<ref>{{cite web|url = http://techcrunch.com/2015/11/16/not-into-the-hearts-twitter-appears-to-be-testing-multi-emoji-reactions/|title = Not Into The Hearts? Twitter Appears To Be Testing Multi-Emoji Reactions|date = November 16, 2015|accessdate = April 24, 2016|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''|last = Olanoff|first = Drew}}</ref>
 
|-
 
|-
| 2015 || November 4 || Product || Twitter launches a political transparency page, so that people can better engage with policy issues on Twitter.<ref>{{cite web|url = http://techcrunch.com/2015/11/04/twitter-launches-a-political-transparency-page/|title = Twitter Launches A Political Transparency Page|date = November 4, 2015|accessdate = April 24, 2016|publisher = ''[[TechCrunch]]''|last = Buhr|first = Sarah}}</ref>
+
| 2015 || November 4 || Product || Twitter launches a political transparency page, so that people can better engage with policy issues on Twitter.<ref>{{cite web|url = http://techcrunch.com/2015/11/04/twitter-launches-a-political-transparency-page/|title = Twitter Launches A Political Transparency Page|date = November 4, 2015|accessdate = April 24, 2016|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''|last = Buhr|first = Sarah}}</ref>
 
|-
 
|-
| 2016 || February–March || Product || Twitter rolls out a change to its feed, making recommended tweets the default option, rather than the reverse chronological format that it had used since launch.<ref>{{cite web|url = http://www.theverge.com/2016/2/6/10927874/twitter-algorithmic-timeline|title =  Here's how Twitter's new algorithmic timeline is going to work. Yes, you can opt out|last = Newton|first = Casey|date = February 6, 2016|accessdate = April 24, 2016|publisher = ''[[The Verge]]''}}</ref> The rollout officially begins on February 10.<ref>{{cite web|url = https://blog.twitter.com/2016/never-miss-important-tweets-from-people-you-follow|title = Never miss important Tweets from people you follow|last = Jahr|first = Mike|date = February 10, 2016|accessdate = April 24, 2016|publisher = [[Twitter]]}}</ref><ref>{{Cite web|url = http://techcrunch.com/2016/02/10/twitter-will-now-put-recommended-not-recent-tweets-at-the-top-of-your-timeline/|title = Twitter Will Now Put Recommended (Not Newest) Tweets At the Top Of Your Timeline|last = Lynley|first = Matthew|date = February 10, 2016|accessdate = April 24, 2016|publisher = ''[[TechCrunch]]''}}</ref> The rollout is completed on March 17, 2016.<ref>{{cite web|url = http://thenextweb.com/twitter/2016/03/17/twitter-quietly-turned-new-algorithmic-timeline-everyone/|title = Twitter is now turning on its new algorithmic timeline for everyone|last = Williams|first = Owen|date = March 17, 2016|accessdate = April 24, 2016|publisher = ''The Next Web''}}</ref> Users are allowed to opt out, but Twitter reports in April 2016 that the percentage of users who opted out is in the "low single digits".<ref>{{cite web|url = http://techcrunch.com/2016/03/18/twitter-says-few-users-have-opted-out-of-its-new-algorithmic-timeline/|title = Twitter says few users have opted out of its new, algorithmic timeline|date = March 18, 2016|accessdate = April 24, 2016|publisher = ''[[TechCrunch]]''|last = Perez|first = Sarah}}</ref>
+
| 2016 || February–March || Product || Twitter rolls out a change to its feed, making recommended tweets the default option, rather than the reverse chronological format that it had used since launch.<ref>{{cite web|url = http://www.theverge.com/2016/2/6/10927874/twitter-algorithmic-timeline|title =  Here's how Twitter's new algorithmic timeline is going to work. Yes, you can opt out|last = Newton|first = Casey|date = February 6, 2016|accessdate = April 24, 2016|publisher = ''[[wikipedia:The Verge|The Verge]]''}}</ref> The rollout officially begins on February 10.<ref>{{cite web|url = https://blog.twitter.com/2016/never-miss-important-tweets-from-people-you-follow|title = Never miss important Tweets from people you follow|last = Jahr|first = Mike|date = February 10, 2016|accessdate = April 24, 2016|publisher = [[wikipedia:Twitter|Twitter]]}}</ref><ref>{{Cite web|url = http://techcrunch.com/2016/02/10/twitter-will-now-put-recommended-not-recent-tweets-at-the-top-of-your-timeline/|title = Twitter Will Now Put Recommended (Not Newest) Tweets At the Top Of Your Timeline|last = Lynley|first = Matthew|date = February 10, 2016|accessdate = April 24, 2016|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref> The rollout is completed on March 17, 2016.<ref>{{cite web|url = http://thenextweb.com/twitter/2016/03/17/twitter-quietly-turned-new-algorithmic-timeline-everyone/|title = Twitter is now turning on its new algorithmic timeline for everyone|last = Williams|first = Owen|date = March 17, 2016|accessdate = April 24, 2016|publisher = ''The Next Web''}}</ref> Users are allowed to opt out, but Twitter reports in April 2016 that the percentage of users who opted out is in the "low single digits".<ref>{{cite web|url = http://techcrunch.com/2016/03/18/twitter-says-few-users-have-opted-out-of-its-new-algorithmic-timeline/|title = Twitter says few users have opted out of its new, algorithmic timeline|date = March 18, 2016|accessdate = April 24, 2016|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''|last = Perez|first = Sarah}}</ref>
 
|-
 
|-
 
| 2016 || May 24 || Product || Twitter announces that photos, videos, and the person's handle will not be counted in the 140 characters, and that a tweet beginning with a handle will be seen by followers.<ref>{{cite news|url = http://bigstory.ap.org/article/e80322b79d0d4765a2bcea2b473c9a34/coming-soon-twitter-more-room-tweetl|title = Coming soon to Twitter: More room to tweet |work = Associated Press|date = May 24, 2016|accessdate = May 24, 2016}}</ref>
 
| 2016 || May 24 || Product || Twitter announces that photos, videos, and the person's handle will not be counted in the 140 characters, and that a tweet beginning with a handle will be seen by followers.<ref>{{cite news|url = http://bigstory.ap.org/article/e80322b79d0d4765a2bcea2b473c9a34/coming-soon-twitter-more-room-tweetl|title = Coming soon to Twitter: More room to tweet |work = Associated Press|date = May 24, 2016|accessdate = May 24, 2016}}</ref>
Line 166: Line 166:
 
| 2016 || June 24 || Product || Twitter launches tags to location feeds with Foursquare. People can see which tweets are from a specific place. <ref>{{cite news|url = https://techcrunch.com/2016/06/24/what-when-where/|title = Twitter quietly launches tags to location feeds with Foursquare |work = TechCrunch|date = June 24, 2016|accessdate = June 24, 2016}}</ref>
 
| 2016 || June 24 || Product || Twitter launches tags to location feeds with Foursquare. People can see which tweets are from a specific place. <ref>{{cite news|url = https://techcrunch.com/2016/06/24/what-when-where/|title = Twitter quietly launches tags to location feeds with Foursquare |work = TechCrunch|date = June 24, 2016|accessdate = June 24, 2016}}</ref>
 
|-
 
|-
| 2016 || September 23 || Acquisition (potential) || [[CNBC]] reports that Twitter is in talks with potential acquirers including [[Google]] and [[Salesforce.com]].<ref>{{cite web|url = http://www.cnbc.com/2016/09/23/twitter-may-receive-formal-bid-shortly-suitors-said-to-include-salesforce-and-google.html|title = Twitter may soon get formal bid, suitors said to include Salesforce and Google|last = Faber|first = David|last2 = Balakrishnan|first2 = Anita|publisher = [[CNBC]]|date = September 23, 2016|accessdate = October 22, 2016}}</ref> On the same day, ''[[TechCrunch]]'' reports on the departure of two key Twitter team members.<ref>{{cite web|url = https://techcrunch.com/2016/09/23/fresh-twitter-departures-include-u-s-moments-lead-and-head-of-tv/?ncid=rss|title = Fresh Twitter departures include U.S. Moments lead and head of TV|last = Etherington|first = Darrell|date = September 23, 2016|accessdate = October 21, 2016|publisher = ''[[TechCrunch]]''}}</ref>
+
| 2016 || September 23 || Acquisition (potential) || [[wikipedia:CNBC|CNBC]] reports that Twitter is in talks with potential acquirers including [[wikipedia:Google|Google]] and [[wikipedia:Salesforce.com|Salesforce.com]].<ref>{{cite web|url = http://www.cnbc.com/2016/09/23/twitter-may-receive-formal-bid-shortly-suitors-said-to-include-salesforce-and-google.html|title = Twitter may soon get formal bid, suitors said to include Salesforce and Google|last = Faber|first = David|last2 = Balakrishnan|first2 = Anita|publisher = [[wikipedia:CNBC|CNBC]]|date = September 23, 2016|accessdate = October 22, 2016}}</ref> On the same day, ''[[wikipedia:TechCrunch|TechCrunch]]'' reports on the departure of two key Twitter team members.<ref>{{cite web|url = https://techcrunch.com/2016/09/23/fresh-twitter-departures-include-u-s-moments-lead-and-head-of-tv/?ncid=rss|title = Fresh Twitter departures include U.S. Moments lead and head of TV|last = Etherington|first = Darrell|date = September 23, 2016|accessdate = October 21, 2016|publisher = ''[[wikipedia:TechCrunch|TechCrunch]]''}}</ref>
 
|-
 
|-
| 2016 || October 21 || Downtime || A [[distributed denial of service]] attack on DNS provider [[Dyn (company)|Dyn]]'s servers in the United States East Coast causes DNS resolution problems for many websites include Twitter, [[Reddit]], [[GitHub]], [[Spotify]], and others, mostly for users in the Americas.<ref>{{cite web|url = http://www.usatoday.com/story/tech/2016/10/21/cyber-attack-takes-down-east-coast-netflix-spotify-twitter/92507806/|title = East coast Internet service attack resolved|last = Blumenthal|first = Eli|last2 = Weise|first2 = Elizabeth|date = October 21, 2016|accessdate = October 22, 2016|publisher = ''[[USA Today]]''}}</ref>
+
| 2016 || October 21 || Downtime || A [[wikipedia:distributed denial of service|distributed denial of service]] attack on DNS provider [[wikipedia:Dyn (company)|Dyn]]'s servers in the United States East Coast causes DNS resolution problems for many websites include Twitter, [[wikipedia:Reddit|Reddit]], [[wikipedia:GitHub|GitHub]], [[wikipedia:Spotify|Spotify]], and others, mostly for users in the Americas.<ref>{{cite web|url = http://www.usatoday.com/story/tech/2016/10/21/cyber-attack-takes-down-east-coast-netflix-spotify-twitter/92507806/|title = East coast Internet service attack resolved|last = Blumenthal|first = Eli|last2 = Weise|first2 = Elizabeth|date = October 21, 2016|accessdate = October 22, 2016|publisher = ''[[wikipedia:USA Today|USA Today]]''}}</ref>
 
|-
 
|-
| 2016 || October 27 || || Twitter announces that it plans to cut 350 jobs (around 9% of its global workforce).<ref>{{cite web |url=https://www.nytimes.com/2016/10/28/technology/twitter-job-cuts-q3-earnings.html |date=Oct. 27, 2016 |publisher=[[The New York Times]] |title=Twitter to Cut Jobs as It Aims for a Turnaround |author=MIKE ISAAC |accessdate=February 21, 2017}}</ref>
+
| 2016 || October 27 || || Twitter announces that it plans to cut 350 jobs (around 9% of its global workforce).<ref>{{cite web |url=https://www.nytimes.com/2016/10/28/technology/twitter-job-cuts-q3-earnings.html |date=Oct. 27, 2016 |publisher=[[wikipedia:The New York Times|The New York Times]] |title=Twitter to Cut Jobs as It Aims for a Turnaround |author=MIKE ISAAC |accessdate=February 21, 2017}}</ref>
 
|-
 
|-
 
| 2016 || October 27 || Vine || Vine announces that Twitter would be discontinuing the Vine mobile app. Vine says users of the service would be notified before any changes to the app or website are made. The company also states that the website and the app will be still available for users to view and download Vines; however, users will no longer be able to post.<ref name="variety-vineshuttingdown">{{cite web|title=Twitter Is Shutting Down Vine|url=http://variety.com/2016/digital/news/twitter-vine-shutting-down-1201902457/|website=Variety|accessdate=17 December 2016}}</ref>
 
| 2016 || October 27 || Vine || Vine announces that Twitter would be discontinuing the Vine mobile app. Vine says users of the service would be notified before any changes to the app or website are made. The company also states that the website and the app will be still available for users to view and download Vines; however, users will no longer be able to post.<ref name="variety-vineshuttingdown">{{cite web|title=Twitter Is Shutting Down Vine|url=http://variety.com/2016/digital/news/twitter-vine-shutting-down-1201902457/|website=Variety|accessdate=17 December 2016}}</ref>
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| 2016 || November 1 || Company operation || Rishi Jaitly, Twitter's head of India, announces his departure from the company.<ref>{{cite web |url=https://techcrunch.com/2016/11/01/twitters-head-of-india-is-leaving-the-company/ |date=November 1, 2016 |publisher=TechCrunch |title=Twitter’s head of India is leaving the company |author=Jon Russell |accessdate=February 22, 2017}}</ref><ref>{{cite web |url=http://mashable.com/2016/11/01/twitter-india-head-rishi-jaitly-quits/ |title=Twitter India head Rishi Jaitly quits company |publisher=Mashable |date=2016-11-01 |author=Manish Singh |accessdate=February 22, 2017}}</ref>
 
| 2016 || November 1 || Company operation || Rishi Jaitly, Twitter's head of India, announces his departure from the company.<ref>{{cite web |url=https://techcrunch.com/2016/11/01/twitters-head-of-india-is-leaving-the-company/ |date=November 1, 2016 |publisher=TechCrunch |title=Twitter’s head of India is leaving the company |author=Jon Russell |accessdate=February 22, 2017}}</ref><ref>{{cite web |url=http://mashable.com/2016/11/01/twitter-india-head-rishi-jaitly-quits/ |title=Twitter India head Rishi Jaitly quits company |publisher=Mashable |date=2016-11-01 |author=Manish Singh |accessdate=February 22, 2017}}</ref>
 
|-
 
|-
| 2016 || November 9 || Company operation || Adam Bain, Twitter's [[chief operating officer]], announces he will leave the company.<ref>{{cite web |url=https://www.nytimes.com/2016/11/10/technology/adam-bain-twitter-chief-operating-officer-step-down.html |date=Nov. 9, 2016 |publisher=[[The New York Times]] |title=Twitter’s Chief Operating Officer to Step Down |author=MIKE ISAAC |accessdate=February 21, 2017}}</ref>
+
| 2016 || November 9 || Company operation || Adam Bain, Twitter's [[wikipedia:chief operating officer|chief operating officer]], announces he will leave the company.<ref>{{cite web |url=https://www.nytimes.com/2016/11/10/technology/adam-bain-twitter-chief-operating-officer-step-down.html |date=Nov. 9, 2016 |publisher=[[wikipedia:The New York Times|The New York Times]] |title=Twitter’s Chief Operating Officer to Step Down |author=MIKE ISAAC |accessdate=February 21, 2017}}</ref>
 
|-
 
|-
 
| 2016 || December 1 || Acquisition || Twitter acquires Yes, Inc., the company that made several apps including Frenzy. All of Yes's apps would shut down. In the process of the acquisition, Keith Coleman, who had served as CEO of Yes, becomes a new vice president of product for Twitter.<ref>{{cite web |url=https://techcrunch.com/2016/12/01/twitter-vp/ |date=December 2, 2016 |publisher=TechCrunch |title=Twitter buys startup Yes, Inc. and scores a new VP of product in the process |author=Brian Heater |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=http://venturebeat.com/2016/12/01/twitter-acquires-yes-inc-to-better-connect-people-in-real-life-around-events/ |publisher=VentureBeat |title=Twitter acquires Yes, Inc. to better connect people around events (and get a product lead) |accessdate=February 21, 2017 |author=Ken Yeung |date=December 1, 2016}}</ref>
 
| 2016 || December 1 || Acquisition || Twitter acquires Yes, Inc., the company that made several apps including Frenzy. All of Yes's apps would shut down. In the process of the acquisition, Keith Coleman, who had served as CEO of Yes, becomes a new vice president of product for Twitter.<ref>{{cite web |url=https://techcrunch.com/2016/12/01/twitter-vp/ |date=December 2, 2016 |publisher=TechCrunch |title=Twitter buys startup Yes, Inc. and scores a new VP of product in the process |author=Brian Heater |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=http://venturebeat.com/2016/12/01/twitter-acquires-yes-inc-to-better-connect-people-in-real-life-around-events/ |publisher=VentureBeat |title=Twitter acquires Yes, Inc. to better connect people around events (and get a product lead) |accessdate=February 21, 2017 |author=Ken Yeung |date=December 1, 2016}}</ref>
 
|-
 
|-
| 2016 || December 20 || Company operation || Adam Messinger, Twitter's [[chief technology officer]], announces his departure from the company.<ref>{{cite web |url=https://www.nytimes.com/2016/12/20/technology/twitters-chief-technology-officer-to-leave-company.html |date=Dec. 20, 2016 |publisher=[[The New York Times]] |title=Twitter’s Chief Technology Officer to Leave Company |author=MIKE ISAAC |accessdate=February 21, 2017}}</ref> On the same day, Josh McFarland, a vice president of product, also announces his departure from Twitter.<ref>{{cite web |url=https://techcrunch.com/2016/12/20/twitters-cto-adam-messinger-is-leaving-the-company/ |date=December 20, 2016 |publisher=TechCrunch |title=Twitter’s CTO Adam Messinger is leaving the company along with VP of product Josh McFarland |author=Matthew Lynley |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=https://techcrunch.com/2016/12/20/greylock-just-hired-josh-mcfarland-who-sold-his-greylock-backed-company-to-twitter/ |date=December 20, 2016 |publisher=TechCrunch |title=Greylock just hired Josh McFarland, who sold his Greylock-backed company to Twitter |author=Connie Loizos |accessdate=February 21, 2017}}</ref>
+
| 2016 || December 20 || Company operation || Adam Messinger, Twitter's [[wikipedia:chief technology officer|chief technology officer]], announces his departure from the company.<ref>{{cite web |url=https://www.nytimes.com/2016/12/20/technology/twitters-chief-technology-officer-to-leave-company.html |date=Dec. 20, 2016 |publisher=[[wikipedia:The New York Times|The New York Times]] |title=Twitter’s Chief Technology Officer to Leave Company |author=MIKE ISAAC |accessdate=February 21, 2017}}</ref> On the same day, Josh McFarland, a vice president of product, also announces his departure from Twitter.<ref>{{cite web |url=https://techcrunch.com/2016/12/20/twitters-cto-adam-messinger-is-leaving-the-company/ |date=December 20, 2016 |publisher=TechCrunch |title=Twitter’s CTO Adam Messinger is leaving the company along with VP of product Josh McFarland |author=Matthew Lynley |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=https://techcrunch.com/2016/12/20/greylock-just-hired-josh-mcfarland-who-sold-his-greylock-backed-company-to-twitter/ |date=December 20, 2016 |publisher=TechCrunch |title=Greylock just hired Josh McFarland, who sold his Greylock-backed company to Twitter |author=Connie Loizos |accessdate=February 21, 2017}}</ref>
 
|-
 
|-
 
| 2017 || January || || Twitter announces that it would shut down the Twitter Dashboard.<ref>{{cite web |url=https://techcrunch.com/2017/01/11/twitter-is-shutting-down-its-business-app-twitter-dashboard/ |date=January 11, 2017 |publisher=TechCrunch |title=Twitter is shutting down its business app, Twitter Dashboard |author=Sarah Perez |accessdate=February 21, 2017}}</ref>
 
| 2017 || January || || Twitter announces that it would shut down the Twitter Dashboard.<ref>{{cite web |url=https://techcrunch.com/2017/01/11/twitter-is-shutting-down-its-business-app-twitter-dashboard/ |date=January 11, 2017 |publisher=TechCrunch |title=Twitter is shutting down its business app, Twitter Dashboard |author=Sarah Perez |accessdate=February 21, 2017}}</ref>
 
|-
 
|-
| 2017 || January 12 || Competition || The founders of [[App.net]] announce that the platform will shutdown on March 14, 2017. App.net has been called "an ad-free, subscription-based, Twitter clone".<ref>{{Cite web|url=http://blog.app.net/2017/01/12/app-net-is-shutting-down/|title=App.net is shutting down|last=|first=|date=|website=|publisher=|access-date=12 January 2017}}</ref><ref>{{cite web |url=https://techcrunch.com/2017/01/12/app-net-the-ambitious-project-to-build-a-better-twitter-is-finally-dead/ |date=January 13, 2017 |publisher=TechCrunch |title=App.net, the ambitious project to build a better Twitter, is finally dead |author=John Mannes |accessdate=February 21, 2017}}</ref> The source code for App.net will be made available through its [[GitHub]] account.<ref>{{cite web |url=https://github.com/appdotnet |title=App.net |publisher=GitHub}}</ref>
+
| 2017 || January 12 || Competition || The founders of [[wikipedia:App.net|App.net]] announce that the platform will shutdown on March 14, 2017. App.net has been called "an ad-free, subscription-based, Twitter clone".<ref>{{Cite web|url=http://blog.app.net/2017/01/12/app-net-is-shutting-down/|title=App.net is shutting down|last=|first=|date=|website=|publisher=|access-date=12 January 2017}}</ref><ref>{{cite web |url=https://techcrunch.com/2017/01/12/app-net-the-ambitious-project-to-build-a-better-twitter-is-finally-dead/ |date=January 13, 2017 |publisher=TechCrunch |title=App.net, the ambitious project to build a better Twitter, is finally dead |author=John Mannes |accessdate=February 21, 2017}}</ref> The source code for App.net will be made available through its [[wikipedia:GitHub|GitHub]] account.<ref>{{cite web |url=https://github.com/appdotnet |title=App.net |publisher=GitHub}}</ref>
 
|-
 
|-
 
| 2017 || January 18 || Acquisition || Twitter announces it has sold Fabric, Twitter's developer platform, to Google.<ref>{{cite web |url=http://www.businessinsider.com/google-buys-twitter-fabric-2017-1 |author=Matt Weinberger |date=January 18, 2017 |title=Twitter just sold its developer platform to Google |publisher=Business Insider |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=https://techcrunch.com/2017/01/18/google-twitter-fabric/ |date=January 18, 2017 |publisher=TechCrunch |title=Google acquires Fabric developer platform and team from Twitter |author=Josh Constine |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=http://fortune.com/2017/01/18/twitter-fabric-google/ |title=Twitter Is Selling Its Developer Platform to Google as It Continues to Shrink |accessdate=February 21, 2017 |author=Mathew Ingram |date=January 18, 2017}}</ref>
 
| 2017 || January 18 || Acquisition || Twitter announces it has sold Fabric, Twitter's developer platform, to Google.<ref>{{cite web |url=http://www.businessinsider.com/google-buys-twitter-fabric-2017-1 |author=Matt Weinberger |date=January 18, 2017 |title=Twitter just sold its developer platform to Google |publisher=Business Insider |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=https://techcrunch.com/2017/01/18/google-twitter-fabric/ |date=January 18, 2017 |publisher=TechCrunch |title=Google acquires Fabric developer platform and team from Twitter |author=Josh Constine |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=http://fortune.com/2017/01/18/twitter-fabric-google/ |title=Twitter Is Selling Its Developer Platform to Google as It Continues to Shrink |accessdate=February 21, 2017 |author=Mathew Ingram |date=January 18, 2017}}</ref>
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| 2017 || January 26 || Product || Twitter launches the "Explore" tab, which replaces the "Moments" tab. The Explore tab bundles together Moments, trends, live video streams, and search.<ref>{{cite web |url=https://techcrunch.com/2017/01/26/twitter-launches-explore-a-new-home-for-moments-trends-search-and-live-video/ |date=January 26, 2017 |publisher=TechCrunch |title=Twitter launches “Explore,” a new home for Moments, trends, search and live video |author=Sarah Perez |accessdate=February 21, 2017}}</ref>
 
| 2017 || January 26 || Product || Twitter launches the "Explore" tab, which replaces the "Moments" tab. The Explore tab bundles together Moments, trends, live video streams, and search.<ref>{{cite web |url=https://techcrunch.com/2017/01/26/twitter-launches-explore-a-new-home-for-moments-trends-search-and-live-video/ |date=January 26, 2017 |publisher=TechCrunch |title=Twitter launches “Explore,” a new home for Moments, trends, search and live video |author=Sarah Perez |accessdate=February 21, 2017}}</ref>
 
|-
 
|-
| 2017 || January 27 || Legal || Twitter releases two [[national security letter]]s it had received from the [[United States federal government]]. The release followed the lifting of the [[gag order]] placed on Twitter to not release the letters. The letters are from September 2015 and June 2016.<ref>{{cite web |url=https://techcrunch.com/2017/01/27/twitter-releases-national-security-letters/ |date=January 27, 2017 |publisher=TechCrunch |title=Twitter releases national security letters |author=Kate Conger |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=http://www.theverge.com/2017/1/28/14425122/twitter-publishes-fbi-national-security-letters-following-gag-order-lift |date=January 28, 2017 |author=Andrew Liptak |publisher=The Verge |title=Twitter publishes FBI national security letters following gag order lift |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=http://venturebeat.com/2017/01/27/twitter-shares-2-redacted-national-security-letters-from-the-fbi/ |publisher=VentureBeat |title=Twitter shares 2 redacted National Security Letters from the FBI |accessdate=February 21, 2017 |author=Jordan Novet |date=January 27, 2017}}</ref><ref>{{cite web |url=https://blog.twitter.com/2017/transparency-update-twitter-discloses-national-security-letters |author=Elizabeth Banker |title=#Transparency update: Twitter discloses national security letters |date=January 27, 2017 |publisher=Twitter |accessdate=February 21, 2017}}</ref>
+
| 2017 || January 27 || Legal || Twitter releases two [[wikipedia:national security letter|national security letter]]s it had received from the [[wikipedia:United States federal government|United States federal government]]. The release followed the lifting of the [[wikipedia:gag order|gag order]] placed on Twitter to not release the letters. The letters are from September 2015 and June 2016.<ref>{{cite web |url=https://techcrunch.com/2017/01/27/twitter-releases-national-security-letters/ |date=January 27, 2017 |publisher=TechCrunch |title=Twitter releases national security letters |author=Kate Conger |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=http://www.theverge.com/2017/1/28/14425122/twitter-publishes-fbi-national-security-letters-following-gag-order-lift |date=January 28, 2017 |author=Andrew Liptak |publisher=The Verge |title=Twitter publishes FBI national security letters following gag order lift |accessdate=February 21, 2017}}</ref><ref>{{cite web |url=http://venturebeat.com/2017/01/27/twitter-shares-2-redacted-national-security-letters-from-the-fbi/ |publisher=VentureBeat |title=Twitter shares 2 redacted National Security Letters from the FBI |accessdate=February 21, 2017 |author=Jordan Novet |date=January 27, 2017}}</ref><ref>{{cite web |url=https://blog.twitter.com/2017/transparency-update-twitter-discloses-national-security-letters |author=Elizabeth Banker |title=#Transparency update: Twitter discloses national security letters |date=January 27, 2017 |publisher=Twitter |accessdate=February 21, 2017}}</ref>
 
|}
 
|}
  
 
== See also ==
 
== See also ==
* [[Timeline of Facebook]]
+
* [[wikipedia:Timeline of Facebook|Timeline of Facebook]]
* [[Timeline of Instagram]]
+
* [[wikipedia:Timeline of Instagram|Timeline of Instagram]]
* [[Timeline of Snapchat]]
+
* [[wikipedia:Timeline of Snapchat|Timeline of Snapchat]]
* [[Timeline of Pinterest]]
+
* [[wikipedia:Timeline of Pinterest|Timeline of Pinterest]]
* [[Timeline of LinkedIn]]
+
* [[wikipedia:Timeline of LinkedIn|Timeline of LinkedIn]]
* [[Timeline of social media]]
+
* [[wikipedia:Timeline of social media|Timeline of social media]]
  
 
==References==
 
==References==
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{{Technology company timelines}}
 
{{Technology company timelines}}
  
[[Category:Company histories|Twitter]]
+
[[wikipedia:Category:Company histories|Twitter]]
[[Category:Twitter]]
+
[[wikipedia:Category:Twitter|Category:Twitter]]
[[Category:Technology company timelines|Twitter]]
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[[wikipedia:Category:Technology company timelines|Twitter]]
[[Category:Company timelines|Twitter]]
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[[wikipedia:Category:Company timelines|Twitter]]

Revision as of 15:38, 12 March 2017

The content on this page is forked from the English Wikipedia page entitled "Timeline of Twitter". The original page on the English Wikipedia was deleted. The original content was released under the Creative Commons Attribution/Share-Alike License (CC-BY-SA), so this page inherits this license.

This is a timeline of microblogging service Twitter.

Big picture

Time period Key developments at Twitter
March 2006 – March 2007 Twitter launches as a product of parent company Odeo. It grows slowly until March 2007, where usage grows dramatically after it is showcased at the South by Southwest Interactive (SXSW) conference.
April 2007 – October 2008 Twitter grows rapidly under CEO Jack Dorsey, completing two funding rounds and launching official support for hashtags.
October 2008 – October 2010 Jack Dorsey steps down, and Evan Williams takes over as CEO. Twitter raises money, gets celebrity endorsements and publicity, and continues to grow rapidly. The first tweet from space occurs during this period. Twitter also announces that it will start allowing for advertising in the form of promoted tweets – "ordinary tweets that businesses and individuals want to highlight to a wider group of users."
October 2010 – October 2013 Evan Williams steps down as CEO, and Dick Costolo takes over. The company starts making acquisitions, closes a $800 million Series G, puts its advertising plans to fruitions, launches site redesigns, and continues to grow.
October 2013 – present Twitter announces plans and files relevant legal documents in October 2013 so as to go public. In November 2013, it has its initial public offering. Post-IPO, the company's pace of acquisitions increases dramatically.
November 2014 – present With the launch of features such as Instant Timeline, While You Were Away, Quality Filter, Curator, and Moments, Twitter diversifies beyond just being a reverse chronological stream of tweets by people you already follow. Rather, it seeks to more intelligently help people with the on-boarding process as well as helps seasoned users navigate through what might otherwise be a very messy feed.
July 2015 – present Dick Costolo departs Twitter and Jack Dorsey assumes the role of interim CEO. Commentators note that the "founder's instincts" are influencing the product's new direction.

Full timeline

Year Month and date Event type Event
2004 November Prelude Odeo, Twitter's parent company, is started.
2005 February Prelude Odeo's podcasting service is released, with very little public response.
2006 February 26–27 Creation Jack Dorsey, Noah Glass, Evan Williams and Biz Stone discuss the idea of using text messaging to share statuses, and decide to work on the project. The original idea is attributed to Jack Dorsey, and called the status concept.[1]
2006 Early March Creation The name Twitter (spelt twttr at the time) is chosen for the service. The idea for the name is attributed to Noah Glass.[2][3]
2006 March 21 Creation Twitter is officially set up and Jack Dorsey sends the first tweet.[4]
2006 July 15 Media coverage Noah Glass tells Om Malik of GigaOm about Twitter (then called twttr), and Malik writes an article about it on GigaOm.[5] This appears to be the first ever news coverage of Twitter,[6] and a number of people, including Malik himself, have commented on the accuracy (or lack thereof) of its predictions from the perspective of hindsight.[7][8][9]
2006 August 3 Usage Twitter users tweet about a mild (4.4 on the Richter scale) earthquake in California. The event helps Twitter's team see the potential of Twitter as a way for many people to contribute to the reporting of a live event, each from his or her own vantage point.[10]
2006 September Userbase Twitter attempts to have a grand launch at the Love Parade, but gets very little traction there, with only 100 new signups.[11]
2006 October Financial/legal and company operation Biz Stone, Evan Williams, Dorsey, and other members of Odeo, form Obvious Corporation and acquired Odeo, together with its assets—including Odeo.com and Twitter.com—from the investors and shareholders.[12]
2007 March 12 Userbase Twitter is highly successful at South by Southwest Interactive (SXSW) and gets a major bump in usage from the event.[13] Commentator Steven Levy calls this a tipping point for Twitter.[14]
2007 April Financial/legal and company operation Twitter spins off into its own company.[15]
2007 June 26 Financial/legal Twitter announces that it has closed a funding round led by Fred Wilson of Union Square Ventures.[16] The five-million-dollar round values Twitter at $20 million.[17]
2007 August 23 Usage The hashtag (#), first proposed by user Chris Messina, debuts on Twitter.[18]
2008 June 24 Financial/legal Twitter announces the closure of its second funding round, welcoming new investors Bijan Sabet of Spark Capital and Jeff Bezos of Bezos Expeditions. Existing partners Union Square Ventures and Digital Garage also invest more.[19]
2008 October 16 Company operation It is announced that Jack Dorsey has stepped down from the CEO role at Twitter, and Evan Williams takes over.[20][21][22][23]
2009 February 13 Financial/legal Twitter announces the closure of yet another funding round, with new investors Peter Fenton of Benchmark Capital and Todd Chaffee of Institutional Venture Partners.[24][25]
2009 April 17 Media coverage, userbase expansion Evan Williams appears alongside Ashton Kutcher on Oprah Winfrey's show to explain Twitter to Oprah's audience.[26]
2009 April 20 onward Media coverage, userbase expansion Executives from Twitter and WordPress head over to Iraq to expose the people there to social media and the Internet.[27]
2009 April 30 Media coverage Twitter executives Biz Stone and Evan Williams are included in the TIME 100.[28]
2009 June 15–16 Usage Twitter reschedules planned downtime for maintenance so as not to conflict with a large planned protest in Iran.[29] Because a US State Department official had emailed Twitter about the planned protest, newspapers speculate that Twitter rescheduled its downtime because of pressure from the US government.[30][31][32]
2010 January 22 Usage The first unassisted off-Earth Twitter message is posted from the International Space Station by NASA astronaut T. J. Creamer.[33]
2010 April 13 Product Twitter announces that it will start allowing for advertising in the form of promoted tweets – "ordinary tweets that businesses and individuals want to highlight to a wider group of users."[34][35][36]
2010 October 4 Company operation Evan Williams steps down as CEO, and Dick Costolo, the erstwhile COO, takes over as CEO.[37][38][39]
2011 April 5, April 20 Product Twitter tests a new homepage and phased out the "Old Twitter." [40] However, a glitch came about after the page was launched, so the previous "retro" homepage was still in use until the issues were resolved; the new homepage was reintroduced on April 20.[41][42]
2011 July 5 Acquisition Twitter acquires BackType, a real-time social analytics platform.[43][44]
2011 September 8–9 Financial/legal Twitter closes its Series G round, raising $800 million at a $8 billion valuation. Of the $800 million, $400 million buys off shares from existing investors and the remaining $400 million goes to the company.[45][46]
2011 December 8 Product Twitter overhauls its website once more to feature the "Fly" design, which the service says is easier for new users to follow and promotes advertising. In addition to the Home tab, the Connect and Discover tabs are introduced along with a redesigned profile and timeline of Tweets. The site's layout is compared to that of Facebook.[47][48]
2012 February 21 Product Twitter announces a parternship with Russian search engine Yandex. Yandex, a Russian search engine, finds value within the partnership due to Twitter’s real time news feeds. Twitter’s director of business development explained that it is important to have Twitter content where Twitter users go.[49]
2012 March 21 Userbase Twitter celebrates its sixth birthday while also announcing that it has 140 million users and sees 340 million tweets per day. The number of users is up 40% from their September 2011 number, which was said to have been at 100 million at the time.[50]
2012 April Company operation Twitter announces that it is opening an office in Detroit, with the aim of working with automotive brands and advertising agencies.[51] Twitter also expanded its office in Dublin.[52]
2012 June 5 Product A modified logo is unveiled through the company blog, removing the text to showcase the slightly redesigned bird as the sole symbol of Twitter.[53]
2012 October 5 Acquisition Twitter acquired a video clip company called Vine that launches (later) in January 2013.[54][55] Twitter released Vine as a standalone app that allows users to create and share six-second looping video clips on January 24, 2013. Vine videos shared on Twitter are visible directly in users' Twitter feeds.[56] Due to an influx of inappropriate content, it is now rated 17+ in Apple's app store.[57]
2012 December 18 Userbase Twitter announces it had surpassed 200 million monthly active users. Twitter hit 100 million monthly active users in September 2011.[58]
2013 April 18 Product Twitter launches a music app called Twitter Music for the iPhone.[59]
2013 August 28 Acquisition Twitter acquires Trendrr, a real-time social data company.[60]
2013 September 9 Acquisition Twitter acquires MoPub.[61]
2013 September 12 Financial/legal Twitter announces that it has filed papers with the U.S. Securities and Exchange Commission ahead of a planned stock market listing.[62]
2013 October 4 Financial/legal Twitter releases an 800-page prospectus in preparation for the IPO.[63]
2013 November 6–7 Financial/legal On November 6, 70 million shares[64] are priced at US$26 and issued by lead underwriter Goldman Sachs.[65] On November 7, trading of the shares begins on the New York Stock Exchange. The share closes at US$44.90, giving the company a valuation of around US$31 billion.[66]
2014 June 19 Acquisition Twitter acquires SnappyTV.[67]
2014 June 30 Acquisition Twitter confirms acquisition of mobile ad retargeting startup TapCommerce.[68]
2014 July 31 Acquisition Twitter acquires password security startup Mitro and open sources the product.[69]
2014 November 12 Product, userbase Twitter announces "Instant Timeline"—a way to show users who have just created accounts interesting content even before they have followed anybody. Around the same time, Twitter announces that it will make the timeline more customized, highlighting to a user the most important tweets while they were away, rather than simply showing a reverse chronological feed. Other features announced include better video capability and the ability to share public tweets privately with one's followers to discuss them.[70]
2014 December 2 Product Twitter announces a new suite of anti-harassment tools and promises faster response times for abuse complaints.[71]
2015 January 20 Acquisition Twitter acquires India-based mobile marketing startup ZipDial.[72][73]
2015 January 21 Product Twitter officially launches its "While You Were Away" feature.[74]
2015 February 11 Acquisition Twitter announces that it has acquired Niche, an ad network for social media stars, founded by Rob Fishman and Darren Lachtman.[75] The acquisition price is reportedly $50 million.[76]
2015 February 17 Product Twitter lets people share team accounts without sharing passwords, with its new TweetDeck Team feature.[77][78][79]
2015 March 5 Product, monetization Twitter announces that it will tap data from its Marketing Platform Partners and allow publishers to target ads to specific audiences based on that data.[80][81]
2015 March 9 Acquisition Twitter acquires Periscope, a live video streaming startup.[82][83]
2015 March 23 Product Twitter starts rolling out a "Quality Filter" to verified iOS users so that people can more easily keep bullying and unpleasant tweets out of their stream. A number of news articles commented that it worked quite well.[84][85][86][87]
2015 March 31 Product Twitter publicly launches Curator, a real-time search and filtering feature for media outlets, that some commentators call a Storify competitor.[88][89][90]
2015 April 2 Acquisition Twitter acquires TenXer, a platform for developers and engineers to collaborate more effectively.[91]
2015 April 28 Acquisition Twitter acquires with $532 million in stock TellApart, an ad technology company with rich user profiles, and partners with DoubleClick, Google's ad exchange.[92][93][94]
2015 April 28 Financial Twitter shares fall in price by about 18% based on their disappointing quarterly revenue ($436 million), earning, and user growth numbers.[95][96][97] The drop begins even before Twitter's official announcement because the results are scraped by financial intelligence firm Selerity from Twitter's website.[98][99]
2015 May 18 Product Twitter completes the rollout of its new search interface for logged-in web users.[100][101]
2015 May 19 Use in other products Google adds tweets to its mobile search results.[102][103][104][105]
2015 June 11 (announcement), July 1 (planned change) Company operation Dick Costolo steps down as CEO, co-founder Jack Dorsey returns as interim CEO. Costolo will remain on the Board. Shares are up 3% on the announcement.[106][107][108]
2015 June 17 Acquisition Twitter acquires Cambridge-based machine learning startup Whetlab.[109]
2015 September 30 Product Twitter expands Buy buttons through partnerships with Bigcommerce, Demandware, and Shopify.[110][111]
2015 October 6 Product Twitter debuts Twitter Moments, a way for people to get a quick overview of important tweets or chains of tweets that occurred recently.[112][113]
2015 October 14 Company operation Omid Kordestani leaves his job as Chief Business Officer at Google to become Executive Chairman at Twitter.[114] His base salary is $50,000 and he is eligible for up to $12 million in stock based on the company's performance.[115][116]
2015 November 3 Product Twitter replaces the Favorite button with a Like button and the star symbol (used to symbolize favoriting) with a heart symbol.[117][118][119] Twitter reports a 6% increase in usage of the feature after the change,[120] and also appears to be experimenting with offering a more diverse set of emojis, prompting commentators to draw parallels with Facebook's Reactions feature.[121]
2015 November 4 Product Twitter launches a political transparency page, so that people can better engage with policy issues on Twitter.[122]
2016 February–March Product Twitter rolls out a change to its feed, making recommended tweets the default option, rather than the reverse chronological format that it had used since launch.[123] The rollout officially begins on February 10.[124][125] The rollout is completed on March 17, 2016.[126] Users are allowed to opt out, but Twitter reports in April 2016 that the percentage of users who opted out is in the "low single digits".[127]
2016 May 24 Product Twitter announces that photos, videos, and the person's handle will not be counted in the 140 characters, and that a tweet beginning with a handle will be seen by followers.[128]
2016 June 20 Acquisition Twitter acquires Magic Pony Technology, a company based out of London that has developed techniques of using neural networks (systems that essentially are designed to think like human brains) and machine learning to provide expanded data for images.[129]
2016 June 24 Product Twitter launches tags to location feeds with Foursquare. People can see which tweets are from a specific place. [130]
2016 September 23 Acquisition (potential) CNBC reports that Twitter is in talks with potential acquirers including Google and Salesforce.com.[131] On the same day, TechCrunch reports on the departure of two key Twitter team members.[132]
2016 October 21 Downtime A distributed denial of service attack on DNS provider Dyn's servers in the United States East Coast causes DNS resolution problems for many websites include Twitter, Reddit, GitHub, Spotify, and others, mostly for users in the Americas.[133]
2016 October 27 Twitter announces that it plans to cut 350 jobs (around 9% of its global workforce).[134]
2016 October 27 Vine Vine announces that Twitter would be discontinuing the Vine mobile app. Vine says users of the service would be notified before any changes to the app or website are made. The company also states that the website and the app will be still available for users to view and download Vines; however, users will no longer be able to post.[135]
2016 November 1 Company operation Rishi Jaitly, Twitter's head of India, announces his departure from the company.[136][137]
2016 November 9 Company operation Adam Bain, Twitter's chief operating officer, announces he will leave the company.[138]
2016 December 1 Acquisition Twitter acquires Yes, Inc., the company that made several apps including Frenzy. All of Yes's apps would shut down. In the process of the acquisition, Keith Coleman, who had served as CEO of Yes, becomes a new vice president of product for Twitter.[139][140]
2016 December 20 Company operation Adam Messinger, Twitter's chief technology officer, announces his departure from the company.[141] On the same day, Josh McFarland, a vice president of product, also announces his departure from Twitter.[142][143]
2017 January Twitter announces that it would shut down the Twitter Dashboard.[144]
2017 January 12 Competition The founders of App.net announce that the platform will shutdown on March 14, 2017. App.net has been called "an ad-free, subscription-based, Twitter clone".[145][146] The source code for App.net will be made available through its GitHub account.[147]
2017 January 18 Acquisition Twitter announces it has sold Fabric, Twitter's developer platform, to Google.[148][149][150]
2017 January 20 Vine Twitter launches an online archive of Vine videos.[151]
2017 January 26 Product Twitter launches the "Explore" tab, which replaces the "Moments" tab. The Explore tab bundles together Moments, trends, live video streams, and search.[152]
2017 January 27 Legal Twitter releases two national security letters it had received from the United States federal government. The release followed the lifting of the gag order placed on Twitter to not release the letters. The letters are from September 2015 and June 2016.[153][154][155][156]

See also

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