Zuckerberg launches Facebook as a Harvard-only social network.
Facebook receives its first investment from Peter Thiel for US$500,000
Facebook launches its photos feature with no restrictions on storage (but without the ability to tag friends)
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.
Open sourcingMarch 2015
Facebook releases its React native framework for building native apps as open source. This is announced on the second day of the F8 conference.
Facebook announces that it has hit the milestone of 1 billion users accessing it on a single day