"Yishan Stele" is the abbreviation of "Qin Yishan Stele". The author of "Qin Yishan Stele" was the first emperor of the Qin Dynasty during his eastward tour, and his ministers praised his virtues. In his second year, Prime Minister Li Si began to carve stones. There is no such monument in Yishan today, but there are many successors, each with his own origin. In the past, Xu Xuan was famous for his small seal script in the south of the Yangtze River. Zheng Wenbao, one of his disciples, learned from Xuan and became famous for a while. This text was copied by Xuan, and Wenbao also said that he personally went to Yishan to visit the Qin stele, but failed to find it, so he used Xuan's copy to engrave the stone in Chang'an, where it has been passed down for many generations.