It refers to Jiangyin. After the demise of the Ming Dynasty, Manchu invaded the Central Plains. In order to consolidate the rule, the whole country implemented the order of shaving and changing clothes. The slogan is to keep hair and hair. Faced with the Manchu haircut order, Jiangyin10,000 people refused the Manchu haircut order, and the Manchu gathered 200,000 troops to besiege the city, forcing Jiangyin people to submit. At this time, Jiangyin people chose a man named Yan Yingyuan.

In the absence of a strong soldier, Yan Yingyuan led 60,000 righteous men, faced with 240,000 Qing fighters and more than 200 heavy artillery, and was trapped in the lonely city for 8 1 day, resulting in the loss of three kings and eighteen generals of the Qing army and 75,000 people killed. On the day of breaking the city, none of the righteous surrendered, only 53 people, old and young, survived. After being captured, Yan Yingyuan resolutely refused to kneel down to Baylor of the Qing court, and was stabbed in the tibia, "blood boiling and falling down", but he never bent his knees and died heroically.