For Truly Great Men.

After the outbreak of the May 4th Movement, Li Dazhao, Chen Duxiu and others discussed China's crisis and the way out, and put forward the idea of ​​saving China with Marxism. The National Congress of the Communist Party of China was held on a cruise ship in Nanhu Lake. Thirteen representatives including Mao Zedong came together with the common goal of reforming China.