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| 2018 || [[w:2018 cryptocurrency crash|Bitcoin crash]] || In January, the [[w:2018 cryptocurrency crash|Great crypto crash]] occurs. After an unprecedented boom in 2017, the price of Bitcoin falls by about 65 percent during the month from 6 January to 6 February. In late March, {{w|Facebook}}, {{w|Google}}, and {{w|Twitter}} ban advertisements for {{w|initial coin offering}}s (ICO) and token sales.<ref>{{Cite news|url=https://www.bloomberg.com/news/articles/2018-03-26/twitter-joins-facebook-google-in-banning-crypto-coin-sale-ads|title=Twitter Joins Facebook, Google in Banning Crypto Coin Sale Ads|last=Russo|first=Camila|date=March 26, 2018|work=Bloomberg|access-date=30 December 2019}}</ref> The price steadily drops all year.<ref name="Bitcoin History: Timeline">{{cite web |title=Bitcoin History: Timeline, Origins and Founder |url=https://www.thestreet.com/investing/bitcoin/bitcoin-history-14686578 |website=thestreet.com |accessdate=1 January 2020}}</ref> By November 15, Bitcoin's market capitalization falls below US$100 billion for the first time since October 2017 and the price of Bitcoin falls to $5,500.<ref>{{Cite news|url=https://www.cnbc.com/2018/11/15/bitcoin-market-cap-falls-below-100-billion-for-first-time-since-2017.html|title=Bitcoin market cap falls below $100 billion for first time since October 2017|last=Huang|first=Eustance|date=2018-11-14|publisher={{w|CNBC}}|access-date=2018-11-15}}</ref><ref>{{Cite news|url=http://fortune.com/2018/11/15/bitcoin-price-cryptocurrency-crash-why/|title=The Entire Cryptocurrency Scene—Including Bitcoin—Is Plummeting Again. These Might Be the Reasons Why|work=Fortune|access-date=30 December 2019|language=en}}</ref>

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