There has long been a need for a scholarly English edition of the great 13th century historical epic, The Secret History of the Mongols, the only surviving Mongol source about the empire. The book is mainly about the life and the career of Chinggis Khan, his ancestors and his rise to power. Chinggis Khan was not only a military genius, but also a great statesman and diplomat. Through a combination of armed force and diplomacy, he managed to merge the complex system of alliances which existed between diverse tribes into a powerful confederacy that swept across most of Eurasia, starting in 1219.