The following book is a historical account regarding Genghis Khan, the founder and first Great Khan (Emperor) 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 the Mongol steppe and being proclaimed the universal ruler of the Mongols, or Genghis Khan. With the tribes of Northeast Asia largely under his control, he set in motion the Mongol invasions, which ultimately witnessed the conquest of much of Eurasia, and incursions by Mongol raiding parties as far west as Legnica in western Poland and as far south as Gaza. He launched campaigns against the Qara Khitai, Khwarezmia, the Western Xia and Jin dynasty during his life, and his generals raided into medieval Georgia, Circassia, the Kievan Rus', and Volga Bulgaria.