Genghis Khan controlled a significant territory.
Genghis Khan ( [ ˈdʒɛŋɡɪs_ˈkɑːn ] , usually pronounced [ ˈɡɛŋɡɪs_ˈkɑːn ] Чингис хаан , Çingis hán [ t͡ʃʰiŋɡɪs xaːŋ ] , c. 1162 August 18 , 1227 ) , born Temüjin , was the Great Khan and founder of the Mongol Empire , which became the largest contiguous empire in history after his death . After founding the Empire and being proclaimed `` Genghis Khan '' , he started the Mongol invasions that conquered most of Eurasia .