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
Mongol invasion of the Latin Empire death originated. In that event, he was likely forced to accept Mongol overlordship and to make annual tribute payments in return for release. By 1251 or 1252, Baldwin II certainly had diplomatic relations with the Mongol Empire, since he sent an ambassador, Baldwin of Hainaut, all the way to the imperial Mongol capital of Karakorum. In 1253, he gave William of Rubruck, a Franciscan missionary, letters of recommendation for Sartaq, the son of the Batu, khan of the Golden Horde. Batu was Qadan's superior in 1242 and his army had also invaded Bulgaria. Jean Richard suggests that Baldwin of Hainaut's