In the early days of the Mongols, the Mongol people were divided into multiple clans each one ruled by a Khan. Later a man named Temujin Khan started conquering the other groups, until he ruled the entire Mongol Empire. After this he was known as Genghis Khan, meaning universal leader. The Mongol people were nomadic and took everything with them, including their houses known as yurts. During Genghis Khan's reign the Mongols took control of almost all of Eurasia.