This man, born Temujin, conquered the largest contiguous empire in the history of the world.
This man defeated his friend Jemukha in battle and was exiled by the Taychiut family after his father Yesugei's death. This man conquered the Khwarezmid Empire. He also defeated both the Xi Xia and Jin Dynasties, and after his death, he was succeeded not by Jochi or Chatagai, but by his third son, Ogodai. This man, born Temujin, conquered the largest contiguous empire in the history of the world. For 10 points, name this man, who united the Mongols.
This man defeated his friend Jemukha in battle and was exiled by the Taychiut family after his father Yesugei's death.
{Genghis Khan} [accept similar sounding things, like Chingis Khan; also accept {Temujin} before mentioned; do not accept or prompt on Khan]