For a time the Il-Khans tolerated and patronized all religious persuasions—Sunni, Shīʿite, Buddhist, Nestorian Christian, Jewish, and pagan. But in 1295 a Buddhist named Maḥmūd Ghāzān became khan and declared himself Muslim, compelling other Mongol notables to follow suit. His patronage of Islamicate learning fostered such brilliant writers as Rashīd al-Dīn, the physician and scholar who authored one of the most famous Persian universal histories of all time. The Mongols, like other Islamicate dynasties swept into power by a tribal confederation, were able to unify their domains for only a few generations. By the 1330s their rule had begun to ...(100 of 41057 words)