In 2004, Mark Zuckerberg creates Facebook in his Harvard dorm room.
2007 Sells a 1.6% stake to Microsoft for $240m.
2009 Introduces "like" button.
2011 Settles with Federal Trade Commission amid claims it misled users over privacy settings.
2012 Acquires Instagram for $1bn in cash and stock.
2013 Refuses to censor beheading videos posted by users on their timelines.
2014 Accused of manipulating users in secret mood experiment.
2015 Criticised for refusing to remove a video depicting child abuse
When Facebook was born... (then called 'theFacebook') launched on February 4, 2004...Mark Zuckerberg was:19 years old.
Within 24 hours it had:1,200 users (all Harvard students).