Timeline of Facebook

Creation of Facebook

Feb 1, 2004

Mark Zuckerberg and co-founders Dustin Moskovitz, Chris Hughes and Eduardo Saverin launch Facebook from their Harvard dorm room

One million users

Dec 1, 2004

Facebook reaches nearly 1 million active users

Five times as many users

Dec 1, 2005

Facebook reaches more than 5.5 million active users

Mobile market

Oct 1, 2007

Facebook reaches over 50 million active users
Facebook launches Facebook Platform for Mobile
Facebook and Microsoft expand advertising deal to cover international markets; Microsoft takes a $240 million equity stake in Facebook

100 million

Aug 1, 2008

Facebook reaches over 100 million active users

500 million

Jul 1, 2010

Facebook reaches over 500 million active users