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Born in 1984, Facebook founder Mark Zuckerberg grew up in Dobbs Ferry, New York, the son of a dentist and a psychiatrist who left her profession to work in her husband's office.Facebook
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Zuckerberg's father describes his son, seen here at five years old, as "strong-willed and relentless."Facebook
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Facebook was founded while Zuckerberg was a student at Harvard, where this photograph was taken.Facebook
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Zuckerberg, right, sits with Facebook's other founders. The tale of the company's earliest days inspired the film The Social Network, which draws a rich, dramatic portrait of a furious, socially handicapped genius, a character who bears little resemblance to the actual Mark Zuckerberg.Facebook
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In this 2006 photo, the Facebook founder poses with his older sister Randi, the company's head of consumer marketing and social-good initiatives.Facebook
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Zuckerberg and his family visit the Wizarding World of Harry Potter in Orlando for Thanksgiving 2010.Facebook
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