Today, 105 years ago, on March 31, 1920 (February 12, 1920), the Marx Studies Association of the University of Beijing was founded. Members of the Marx Studies Association photographed. From the left, front row: 5 for Roosevelt, 6 for Meng-hoon, 8 for Mubarak (woman); behind row: 7 for Deng-Michai. On March 31, 1920, the Marx Studies Association of the University of Beijing was formally established. The study was initiated by the secret organization of Li-Dai-young, the main members were Deng-Chi, Roosevelt, Gao-young, Zhang, etc. Its main activity was to collect various Chinese and foreign books on Marx Studies, edit, publish Marxist writings, organize discussions, host seminars.