210 years ago today, on December 30, 1815 (December 1, 1815 lunar calendar), the poet Yao Nai of the Qing Dynasty died. Yao Nai (1731 - 1815.12.30), the word Ji Chuan, was a poet of the Qing Dynasty. The word Menggu (gu third sound), the room name Xihuoxuan, the world known as Mr. Xihuo, Yao Xihuo, his ancestral home is Yao Wangji, Niuji Township, Zilyang County, and his tenth-generation ancestor Yao Zhilan began to move to Tongcheng City. Nai You were addicted to learning, and his uncle Yao Fan taught scriptures, and he also studied ancient texts from Liu Daqian, showing extraordinary talent. In the 28th year of Qianlong (1763), he was a scholar, and he was a scholar. Three years later, the school was changed to be in charge, and it was divided into the Ministry of War; the chief of the ceremonial system department of the Rites Department was also added. Later, he served as deputy examiner of Shandong and Hunan Township Examinations, and the examiner and Guangdong Silang Middle School of the Ministry of Penalty. In the 38th year of Qianlong, the Qing court opened the Siku Quanshu Library, and Yao Nai was recommended to enter the library to serve as a repairman. This position should have been filled by Hanlin Fang, but 8 people including Du Nai and Xiuning Dai Dongyuan, Xinghua Wu Dachun, and Shexian Cheng Jinfang were elected exceptionally. "Siku Quanshu" was completed, and Nai Qiying returned to his home, but did not enter the career. At the age of 44, Yu Minzhong, a senior scholar, and Liang Guozhi successively moved to high-ranking officials and rich positions, but they were all fired. Since the 42nd year of Qianlong, Yao Nai has lectured on Yangzhou Meihua Academy, Anqing Jingshu Academy, Shexian Ziyang Academy, and Nanjing Zhongshan Academy, dedicated to education, so his disciples are all over the southern provinces. Among them, the most famous are Fang Dongshu, Liu Kai, Li Zongchuan, Fang Ji, Yao Ying of Benyi; Mei Zongliang and Guan Tong of Shangyuan; Wu Dexuan of Yixing; Li Zhaoluo of Yanghu; Yao Chun of Lou County; Lu Jiugao of Xincheng and his nephew Chen Yongguang, etc. These students are all literati who abide by the family law of Tongcheng, and have a great role in the dissemination of the Tongcheng School. The ancient texts of the Tongcheng School were passed down from Fang Bu to the article called Haini, and the top was connected to Zhenchuan, and Liu Dacheng of Tongyi followed the benefits and vibrations, and they were passed on to Yao Nai. Therefore, there is a saying "Tongcheng family law, here is the establishment, the flow of wind makes rhyme, Xianggui in the South Pole, and Yanzhao in the north". Licheng Zhou Shuchang said: "The article in the world is in Tongcheng (including the current Zilyang County)!"