Mark Zuckerberg created Facebook in 2004 with fellow Harvard students Dustin Moskovitz, Chris Hughes and Eduardo Saverin. The social networking site, initially called The Facebook, had over one million users within six months of its launch. By 2014, that number had increased to 250 million.
Zuckerberg was born and raised in White Plains, N.Y., where he lived with his parents and three siblings. He was fascinated by computers throughout his childhood and had a private computer-science tutor to help him hone his skills. Before Facebook, Zuckerberg created CourseMatch, a program to help students select courses, and Facemash, a program that offered users the ability to vote on the attractiveness of their fellow students.