19. The Mongols - Terror of the Steppe (Part 1)
It was a Chinese copy of a copy of a copy of a lost Mongolian document written by an unknown author sometime in the 13th century... once its contents were deciphered. It transformed our understanding of this period. It was a document written, only for the eyes of the Mongolian royal family telling in unprecedented detail, the ups and downs of their story. And for this reason, it came to be known as the secret history of the Mongols.