In the second year of Song Mingdao, a strangely dressed monk fell from the sky, becoming almost a meat paste. The people watched and blocked him, and the monk escaped without a trace. In the third year of Song Jingyou, floods ravaged the south of the Yangtze River. Su Yun, a merchant from Raozhou, donated funds to build the Poyang Dam, saving the prefectures of Xizhou and Poyang from the disaster. In the second year of Song Baoyuan, a smallpox epidemic broke out. Su Yun of Xizhou Prefecture wrote a treatise on smallpox prevention, which spread throughout the country, and the epidemic disappeared. Even today, most people who use the method are from Xizhou. In the third year of Song Baoyuan, the Ehu Academy was completed in Xizhou Prefecture, with Su Yun as the dean, teaching without discrimination. In the third year of Song Huangyou, Su Yun, a great Confucian scholar and philanthropist, passed away peacefully. In the second year of Hongwu, a solar eclipse lasted for three days, and monsters ran rampant. The Hongwu Emperor appointed city gods throughout the land.