Mark Zuckerberg is the co-founder of Facebook, which he started with four other Harvard College classmates. Facebook has since become a multi-billion-dollar company, and Zuckerberg has a personal wealth of over $38.6 billion. In 2004, Zuckerberg launched Facebook from his Harvard dorm room, eventually dropping out his sophomore year to work on the product. By age 23, Mark was a billionaire due to the success of Facebook. Time magazine has ranked Zuckerberg as one of the 100 Most Influential People in the world since 2010. His rise to prominence is portrayed in the 2010 film The Social Network. In 2012, Zuckerberg married his longtime girlfriend, Priscilla Chan, who he began dating in 2003. In 2015, Mark announced the couple was expecting a baby girl.