Lecture Hall Introduction: Dongshan Higher Primary School is famous for its concern for the destiny of the country and the nation and its teaching content. It is well-known and has attracted a large number of passionate young people who pursue the truth. In addition to Mao Zedong, Xiao Zisheng, one of the founders of the Xinmin Society, studied in the first class, Xiao San studied in the second class, Liu Zongtao (secretary of the special committee of the shareholder district) studied in the fourth class, Yi Lilong studied in the seventh class, Chen Genghe Yang Youlin studied in Class 9, Mao Zetan studied in Class 10, and Tan Zheng studied in Class 16.