The famous ruler of the Mongol Empire known for unifying a large portion of Asia is Genghis Khan. Originally named Temujin, he rose to power in the late 12th century and founded the Mongol Empire by uniting various nomadic tribes. Genghis Khan is renowned for his military strategies, organizational skills, and ability to rally diverse groups under a common cause. His conquests extended from China to Eastern Europe, making the Mongol Empire one of the largest contiguous empires in history. Genghis Khan's legacy includes not only territorial expansion but also significant cultural exchange and trade across the Silk Road.