Mark Elliot Zuckerberg :

He was born  on May 14, 1984 is an American computer programmer, Internet entrepreneur, and philanthropist. He is the chairman, chief executive, and co-founder of the social networking website Facebook. His personal wealth, as of December 2015, is estimated to be $46 billion.Zuckerberg receives a one-dollar salary as CEO of Facebook. In the spirit of The Giving Pledge, Zuckerberg and his wife Priscilla Chan announced they would give the majority of their wealth over the course of their lives to "advancing human potential and promoting equality.

Together with his college roommates and fellow Harvard University students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz, and Chris Hughes, he launched Facebook from Harvard's dormitory rooms.The group then introduced Facebook onto other campuses nationwide and moved to Palo Alto, California shortly afterwards. In 2007, at the age of 23, Zuckerberg became a billionaire as a result of Facebook's success. The number of Facebook users worldwide reached a total of one billion in 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.

Zuckerberg began using computers and writing software in middle school. His father taught him Atari BASIC Programming in the 1990s, and later hired software developer David Newman to tutor him privately. Newman calls him a "prodigy", adding that it was "tough to stay ahead of him". Zuckerberg took a graduate course in the subject at Mercy College near his home while still in high school. He enjoyed developing computer programs, especially communication tools and games. In one such program, since his father's dental practice was operated from their home, he built a software program he called "ZuckNet" that allowed all the computers between the house and dental office to communicate with each other. It is considered a "primitive" version of AOL's Instant Messenger, which came out the following year.

According to writer Jose Antonio Vargas, "some kids played computer games. Mark created them." Zuckerberg himself recalls this period: "I had a bunch of friends who were artists. They'd come over, draw stuff, and I'd build a game out of it." However, notes Vargas, Zuckerberg was not a typical "geek-klutz", as he later became captain of his prep school fencing team and earned a classics diploma. Napster co-founder Sean Parker, a close friend, notes that Zuckerberg was "really into Greek odysseys and all that stuff", recalling how he once quoted lines from the Roman epic poem Aeneid, by Virgil, during a Facebook product conference.

During Zuckerberg's high school years, under the company name Intelligent Media Group, he built a music player called the Synapse Media Player that used machine learning to learn the user's listening habits, which was posted to Slashdot  and received a rating of 3 out of 5 from PC Magazine.

Since 2010, Time magazine has named Zuckerberg among the 100 wealthiest and most influential people in the world as a part of its Person of the Year distinction. Zuckerberg was played by actor Jesse Eisenberg in the 2010 film The Social Network, in which the rise of Facebook is portrayed. He has been married to Priscilla Chan since 2012 and they have a daughter.