Mongol Empire his empire among his sons and immediate family, making the Mongol Empire the joint property of the entire imperial family who, along with the Mongol aristocracy, constituted the ruling class. Prior to the three western khanates' adoption of Islam, Genghis Khan and a number of his Yuan successors placed restrictions on religious practices they saw as alien. Muslims, including Hui, and Jews, were collectively referred to as "Huihui". Muslims were forbidden from Halal or "Zabiha" butchering, while Jews were similarly forbidden from Kashrut or "Shehita" butchering. Referring to the conquered subjects as "our slaves," Genghis Khan demanded they no longer
Kublai Khan Europeans and Central Asians – merchants, travelers, and missionaries of different orders – made their way to China. The presence of Mongol power allowed large numbers of Chinese, intent on warfare or trade, to travel to other parts of the Mongol Empire, all the way to Russia, Persia, and Mesopotamia. After Kublai Khan was proclaimed Khagan at his residence in Xanadu on May 5, 1260, he began to organize the country. Zhang Wenqian, a central government official, was sent by Kublai in 1260 to Daming where unrest had been reported in the local population. A friend of Zhang's, Guo Shoujing,