Facebook's Mark Zuckerberg tied the knot this Saturday with longtime girlfriend, Pricilla Chan. Chan had just graduated from medical school at the University of California, San Francisco, on Monday, the same day Zuckerberg turned 28.
The ceremony took place in Zuckerberg's backyard before fewer than 100 guests who all thought they were coming to celebrate Chan's graduation but were told after they arrived that the event was in fact a wedding.
Zuckerberg founded Facebook at Harvard in 2004. He was selected as Time's Person of the Year in 2010, at age 26.He is Facebook's single largest shareholder, with 503.6 million shares worth nearly $20 Billion.