Genghis Khan (also known as Jinghis Khan) was the founder and first leader of the Mongol Empire, one of the largest empires in history. Synonyms for the name Genghis Khan include Temujin, Chinggis Khan, and Genghis Qaghan. Temujin was his birth name, Chinggis Khan is the Mongolian version of his name, and Genghis Qaghan is a title given to him as a ruler. Other common names associated with his reign include Great Khan, Khan of Khans, and Emperor of All Men. Regardless of the name by which he is called, Genghis Khan remains an important historical figure who forever shaped the course of history in his time.