Mark Zuckerberg becomes the king of philanthropists

Mark Zuckerberg, Facebook founder and patron , was the most important philanthropist in the United States in 2013 with a donation of nearly a billion dollars is a non-profit organization in Silicon Valley.

Mark Zuckerberg and his wife Priscilla Chan topped the annual ranking of the largest donors in the United States in 2013 , established by The Chronicle of Philanthropy Monday.

Aged barely 30 years, are the youngest ever to have occupied the top of the list . They made ​​a donation in the form of several million shares of the social network Facebook, now valued at up to $ 992 million , a California NGO working in the areas of health and education.

Before Warren Buffett

The couple had occupied last year 's second place behind the U.S. billionaire investor Warren Buffett, who gave more than $ 3 billion .

The husband gave Zuckerberg in 2012 nearly 500 million in the same foundation. Two years it has received a total of 36 million shares Facebook, valued at $ 1.5 billion .