Organization of the Mongol Empire under Genghis Khan it also strengthened Mongol society as a whole. Genghis Khan’s united Mongol nation formed the foundation of the largest continuous land empire ever known. A wise statesman, Genghis also established Mongolian-style democracy that respected the ethnic and cultural diversity of his Empire. His government left many long-lasting legacies: Genghis Khan preferred to rule through existing hierarchies, but where he was resisted he destroyed the existing aristocracy. Nevertheless, he created at the same time a rough meritocracy among the Mongols. Positions of honor were given on the basis of bravery in battle or outstanding loyalty, as opposed to the old system
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,