Zuckerberg launches Facebook as a Harvard-only social network.
Facebook launches News Feed. The original news feed is an algorithmically generated and constantly refreshing summary of updates about the activities of one's friends. The concept is relatively new at the time, with Twitter having launched only a few months in advance.
Facebook launches Facebook Beacon with 44 partner sites at the time of launch. Beacon is part of Facebook's advertisement system that sent data from external websites to Facebook, for the purpose of allowing targeted advertisements and allowing users to share their activities with their friends. Certain activities on partner sites were published to a user's News Feed. On the Same day, Facebook launches Facebook Pages
Facebook settles both lawsuits, ConnectU vs Facebook, Mark Zuckerberg et al. and intellectual property theft, Wayne Chang et al. over The Winklevoss Chang Group's Social Butterfly project. The settlement effectively had Facebook acquiring ConnectU for $20 million in cash and over $1.2 million in shares, valued at $45 million based on $15 billion company valuation
The Social Network, a film about the beginnings of Facebook directed by David Fincher is released. The film is met with widespread critical acclaim as well as commercial success; however, Mark Zuckerberg says that the film is a largely inaccurate account of what happened