The Mongols are known for one thing: conquest. But in this first comprehensive history of the Horde, the western portion of the Mongol empire that arose after the death of Chinggis Khan, Marie Favereau takes us inside one of the most powerful engines of economic integration in world history to show that their accomplishments extended far beyond the battlefield. Central to the extraordinary commercial boom that brought distant civilizations in contact for the first time, the Horde had a unique political regime―a complex power-sharing arrangement between the khan and nobility―that rewarded skillful administrators and fostered a mobile, innovative economic order. From their capital on the lower Volga River, the Mongols influenced state structures in Russia and across the Islamic world, disseminated sophisticated theories about the natural world, and introduced new ideas of religious tolerance.