Mark Zuckerberg

Mark Elliot Zuckerberg (born May 14, 1984) is an American programmer, Internet entrepreneur, and philanthropist. He is the chairman, chief executive, and co-founder of the social networking website Facebook. His net worth is estimated to be US$51.2 billion June 2016.

Facebook expanded rapidly, with one billion users by 2012. Zuckerberg was involved in various legal disputes that were initiated by others in the group, who claimed a share of the company based upon their involvement during the development phase of Facebook.

Here's 10 interesting facts about him:

• Mark Zuckerberg began programming at a young age--when he was 12 he created a messaging program that his father used in his dental office, allowing the receptionist to notify him of new patients without yelling across the office.

• Zuckerberg took a computer graduate class at the nearby Mercy College while still in high school.

• His parents even hired a computer tutor to work with the young Zuckerberg, but the tutor admitted that it quickly became difficult to stay ahead of his pupil, referring to him as a "prodigy."

• Mark Zuckerberg attended high school at Phillips Exeter Academy, a private school in New Hampshire.

• He was approached by several companies with job offers (including AOL and Microsoft) before he even graduated high school, but Zuckerberg turned them all down.

• Zuckerberg first launched Facebook from his dormitory at Harvard University.

• He dropped out of Harvard University after his sophomore year to continue working on Facebook.

• A movie was made about Zuckerberg and the birth of Facebook, called The Social Network.

• Before Facebook, Zuckerberg created CourseMatch for Harvard students, helping students pick out classes based on which classes their friends were enrolled in.

• He also created the infamous Facemash program, which compared pictures of two Harvard students and allowed users to vote on who was more attractive. Harvard administration shut down the program, deeming it inappropriate.