Genghiskhan

"Genghis Khan (c. 1162–August 18, 1227) was a Mongol political and military leader or Khan (posthumously Khagan) who united the Mongol tribes and founded the Mongol Empire, (1206–1368), the largest contiguous empire in world history. Born Temüjin in the Borjigin family, he forged a powerful army based on meritocracy to become one of the most successful military leaders in history." - Wikipedia