Legend in Yuan Dynasty

This book introduces the history of the Yuan Dynasty, including fought three times with Xixia to clear the periphery, the elder brother killed his younger brother and ascended the throne in Okuotai, the Mongolian army marched eastward to Goryeo, follow the order to unite with the Song Dynasty to destroy Jin, Zhangzi army marched westward to Europe, the Pope sent envoys to Mongolia and so on.