The famed military leader of the Mongol Empire known for his unification of the Mongolian tribes is Genghis Khan. Born as Temüjin in the late 12th century, he rose to power by uniting disparate tribes through alliances and conquests. In 1206, he was proclaimed Genghis Khan, meaning "universal ruler," and began expanding his empire across Asia and into Europe. Known for his innovative military strategies and organization, Genghis Khan created one of the largest empires in history. His legacy includes not only military prowess but also an emphasis on trade, communication, and cultural exchange among the diverse populations within his empire.