In this Nov. 7, 2011 file photo, Facebook creator and CEO Mark Zuckerberg takes questions from the media at Harvard University in Cambridge, Mass. Harvard announced Tuesday, March 7, 2017, that Zuckerberg, who went to Harvard as an undergraduate in 2002 but left after his sophomore year to pursue his company, will be the commencement speaker at the school's May 25, 2017 graduation ceremony.