Claim: Genghis Khan brought together the nomadic tribes of Northeast Asia to form the Mongol Empire.
Evidence: Genghis Khan -LRB- -LSB- ˈdʒɛŋɡɪs_ˈkɑːn -RSB- , usually pronounced -LSB- ˈɡɛŋɡɪs_ˈkɑːn -RSB- Чингис хаан , Çingis hán -LSB- t͡ʃʰiŋɡɪs xaːŋ -RSB- , c. 1162 August 18 , 1227 -RRB- , born Temüjin , was the Great Khan and founder of the Mongol Empire , which became the largest contiguous empire in history after his death.
He came to power by uniting many of the nomadic tribes of Northeast Asia.