Chinggis Khan's restructuring of Mongol society—replacing clan loyalties with a decimal military system, codifying laws, and guaranteeing religious protection—transformed the anarchic steppe into a cohesive imperial state.
After unifying the steppe peoples, Chinggis Khan dismantled the old clan system that had fostered endless blood feuds. He reorganized society around a decimal military hierarchy, introduced the Yassa law code, outlawed wife-kidnapping and Mongol-on-Mongol slavery, and granted religious protections to all faiths. ✦ AI generated
Paul Cooper · Fall of Civilizations · 2025-04-02 · original ↗
starts at this moment · 119:34
He would tear out the old system of clan loyalties and replace it with one based around the military. He organized his warriors according to an old decimal system... His soldiers were placed into squads of ten men called an arban, who lived together and fought as brothers... He introduced a series of laws that he would call the Great Law or Yassa... Being the adherent of no religion and the follower of no creed, he rejected bigotry and the preference of one faith to another, and the placing of some above others.
verbatim transcript · starts at 119:34
119:32referring to the felt tents that characterized the nomadic way of life. The empire was a vast confederation, covering a land area roughly the size of Western Europe, and comprising at least one million people and probably 20 million herd animals, but it was an empire of grass, an empire without cities, without governors or administrators. To make sense of this organizational nightmare, Chinggis Khan embarked on a dramatic restructuring of Mongol society. He would tear out the old system
120:14of clan loyalties and replace it with one based around the military. He organized his warriors according to an old decimal system that had been used for centuries on the steppe, going back to the time of the Xiongnu. His soldiers were placed into squads of ten men called an arban, who lived together and fought as brothers. These squads were typically led by the eldest man. Ten of these arban
120:45joined together to make a zagun, or a hundred men, and these hundred voted to choose its leader. Ten zagun made a mingan, or a thousand men, and ten mingan made a tumen, an army of 10,000 Mongol horsemen. This was considered to be a practical size, large enough to be effective in battle, but not so large that it could not move quickly or ran into problems with supply. The leaders of these
121:18tumen were chosen by Temujin personally. In this way, the old messy clan system, which had fostered infighting and backstabbing, had been replaced by a regimented system that promoted coordination and cooperation. The Persian scholar Ata-Malik Juvaini, writing in the service of the Mongols in the 1250s, gushes about the great success of these reforms. God Almighty in wisdom and intelligence distinguished Chingiz Khan in alertness of mind and absoluteness of power, and exalted him above