Situated at the key area to Taolin Fortress and a strategic point on the Old Path of Yaohan, Hanguguan Pass is said to have been the place where one man guarded the pass and ten thousand were barred. In 243 B.C, in the 6th year of the reign of Emperor Qinshihuang of Qin Dynasty, the five states of Chu, Zhao, Wei, Han and Wei sent an army to attack the kingdom of Qin. It is recorded that at Hanguguan Pass the alliance army suffered a defeat. In the war between the states of Chu and Han, near the end of the Qin Dynasty, Liu Bang successfully withstood the attacks of Xiang Yu. During the Anshi Riot in the Tang Dynasty, the famous Taolin Battle took place before the pass. Two thousand years have passed since the Spring and Autumn Period and the Warring States Period and the pass has witnessed many wars and always remained a strategic place in history.