On this day, 104 years ago, on March 24, 1921 (February 15, 1921, the lunar calendar), Chen Duxiu was in Guangdong to organize the party. Chen Duxiu In March 1921, Chen Duxiu secretly carried out activities in Guangdong, and together with Tan Pingshan, Tan Zhitang, Chen Gongbo and others, planned to formally establish the Guangdong Communist Group. Chen Duxiu pointed out: Now that Sun Yat-sen and Chen Jiongming have established a government in Guangzhou, this is the best opportunity to launch a popular movement. However, in leading the mass movement, individual leadership is not comparable to the leadership of an organization. Even a small group cannot afford the historical responsibility of leading the mass movement. In order to achieve greater development of the mass movement in Guangdong, a leading organization must be established. The name is called the "Communist Party".