Introduction to the display of the history of revolutionary struggle: The display includes more than 140 revolutionary cultural relics and historical materials, supplemented by more than 120 pictures and photos, showing the Communist Party of China's propaganda of Marxism-Leninism and leadership in the Mentougou area starting from the autumn of 1924. It is a process in which farmers, students, and coal miners carry out revolutionary movements and establish and develop grassroots organizations of the Party and the Youth League.