Introduction to the special exhibition: There is a special exhibition "Li Dazhao from 1920 to 1924" in the south courtyard of Li Dazhao's former residence, which focuses on Li Dazhao's spread of Marxism, founding the Communist Party of China, promoting the first cooperation between the Kuomintang and the Communist Party, and leading the northern workers' movement. A series of revolutionary practice activities highlight the glorious style of a generation of historical celebrities.