扎克伯格获哈佛荣誉学位
Facebook founder Mark Zuckerberg features in a long line of university dropouts who became millionaires after founding technology companies - Bill Gates and Steve Jobs among them.
脸书创始人马克·扎克伯格是辍学创办科技公司并成为百万富翁的成功人士之一，比尔·盖茨和史蒂夫·乔布斯也是他的同道中人。
But 12 years after leaving Harvard to work on Facebook full time, he has returned to pick up his degree.
Zuckerberg founded what was then called "The Facebook" in his college dormitory in 2004. The service was at first limited only to Harvard students before expanding to other Ivy League universities.
He delivered the university's commencement address later on Thursday. After receiving the honour, he posted a photo of him with his parents Edward and Karen Zuckerberg.
During his remarks on Thursday, Mr Zuckerberg told graduates that "we live in an unstable time".
Zuckerberg returned to the room where he built Facebook along with his co-founders, Dustin Moskovitz, Eduardo Saverin, Andrew McCollum and Chris Hughes.
Even after the company moved its headquarters to California, Zuckerberg continued to be enrolled at Harvard until he dropped out in November 2005. "I'm not coming back" he told the university paper The Crimson.
His honorary degree comes 12 years later, a little quicker than it took Bill Gates, another famous Harvard dropout to get his. Gates, who left to found Microsoft in 1975, did not receive his honorary degree until 2007.