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Last Updated: Oct 31, 2025

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American computer programmer and entrepreneur Mark Zuckerberg gained international notoriety as cofounder and CEO (2004– ) of Facebook, a social networking Web site that went on to become the largest social network in the world. Facebook was founded in 2004 by Zuckerberg, Eduardo Saverin, Dustin Moskovitz, and Chris Hughes, all of whom were students at Harvard University. In 2006 Zuckerberg turned down a $1 billion buyout offer from Yahoo!; the following year, Facebook struck a deal with Microsoft in which the software company paid $240 million for a 1.6 percent stake in Facebook. After Facebook's initial public offering of stock in 2012, Zuckerberg's net worth was estimated at more than $19 billion.

How old was Mark Zuckerberg when he became a billionaire?

Mark Zuckerberg was 23 years old when he debuted on the Forbes Billionaires list in 2008, making him the youngest self-made billionaire to appear on the list.

How old was Mark Zuckerberg when Facebook was created?

Mark Zuckerberg was 19 years old when, on February 4, 2004, he launched thefacebook.com (renamed Facebook in 2005).

Where did Mark Zuckerberg go to high school?

Mark Zuckerberg began his high school education at Ardsley High School in Ardsley, New York, before transferring to Phillips Exeter Academy, a private college-preparatory school in Exeter, New Hampshire.

Did Mark Zuckerberg graduate from college?

After launching thefacebook.com in 2004, Mark Zuckerberg dropped out of Harvard University to concentrate on the fledgling company. In 2017 Zuckerberg received an honorary degree from the university.

Where did Mark Zuckerberg and Priscilla Chan meet?

Mark Zuckerberg met now-wife Priscilla Chan, a fellow student at Harvard University, while waiting in line for the bathroom at a college party.

Zuckerberg is red-green color-blind; he chose Facebook's signature blue color scheme because blue is the color that appears most vividly to his eyes.

In 2012 a crowd of about 100 invited guests gathered at the home of Zuckerberg and then-girlfriend Priscilla Chan in Palo Alto, California, under the impression that they were there to celebrate Chan's graduation from medical school; instead, Zuckerberg and Chan were married in a surprise ceremony that took place in their backyard.

In 2010 Zuckerberg decided to learn Mandarin; five years later, he delivered a 20-minute speech in Mandarin at Tsinghua University in Beijing.

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