 Because of the importance of its transportation in history, Guyuan was a war gate where Chinese soldiers trained and prepared to fight with northwestern minorities.In the Tang dynasty, most of the dealers from middle Asia need to go through this gate, then went to the capital, Chang’an.According to the First Founder's Biography in History of Yuan Dynasty, Genghis Khan died in Liupan Mountain in Guyuan in 1227AD, after a war with the Xixia dynasty for two decades.