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Timeline subject	Focus area
Airbnb
Alzheimer's disease
Amazon Web Services
Amazon.com
Animal welfare and rights
Animal welfare and rights in Europe
Animal welfare and rights in the United States
Bladder cancer
Brain cancer
Cardiovascular disease
Cellular agriculture
Cervical cancer
Chagas disease
Cholera
Colorectal cancer
Deworming
Digital preservation
Dropbox
E-commerce
Facebook
GitHub
Global health
Healthcare in China
Healthcare in Cuba
Healthcare in Egypt
Healthcare in Ethiopia
Healthcare in France
Healthcare in Germany
Healthcare in India
Healthcare in Italy
Healthcare in Japan
Healthcare in Kenya
Healthcare in Nigeria
Healthcare in Russia
Healthcare in South Africa
Healthcare in the Democratic Republic of the Congo
Healthcare in the United Kingdom
Hepatitis
Hospitals
Influenza
Instagram
Intel
Kidney cancer
Leukemia
LinkedIn
Liver cancer
Lung cancer
Lyft
Lymphoma
Machine learning
Malaria
Measles
Melanoma
Microsoft
Monsanto
Netflix
Nonprofit evaluation
Nordstrom
Online advertising
Online food delivery
Online video
Optical character recognition
Pancreatic cancer
Pinterest
Plague
Poliomyelitis
Quora
Reddit
Senescence research
Snapchat
Social media
Sovereign states in North America
Sovereign states in Oceania
Speech and voice recognition
Square
Stroke
Tesla Motors
Tuberculosis
Twitch.tv
Twitter
Typhoid fever
Typhus
Uber
Valve Corporation
WhatsApp
Xiaomi
Yellow fever