Mark Zuckerberg /

Mark Elliot Zuckerberg (born May 14, 1984) is an American computer programmer and Internet entrepreneur. He is best known for creating the social networking site Facebook, of which he is chief executive and president. It was co-founded as a private company in 2004 by Zuckerberg and classmates Dustin Moskovitz, Eduardo Saverin, and Chris Hughes while they were students at Harvard University. In 2010, Zuckerberg was named Time magazine's Person of the Year. As of 2011, his personal wealth was estimated to be $13.5 billion. Zuckerberg was born in 1984 in White Plains, New York to Karen, a psychiatrist, and Edward Zuckerberg, a dentist. He and his three sisters, Randi, Donna, and Arielle, were brought up in Dobbs Ferry, New York. Zuckerberg was raised Jewish, and had his bar mitzvah when he turned 13, although he has since described himself as an atheist. At Ardsley High School he had excelled in the classics before in his junior year transferring to Phillips Exeter Academy, where Zuckerberg won prizes in science (math, astronomy and physics) and Classical studies.