Chen Duxiu (front row, 3rd L), one of the founders of the Communist Party of China, is pictured here with Cai Yuanpei (front row, 2nd L) and Liang Shuming (front row, 4th L), among others. [Photo/Yangcheng Evening News]

Li Dazhao (front row, 5th L), one of the founders of the Communist Party of China, poses for a picture with colleagues from the Morning Bell newspaper in Peking Central Park (now Beijing Zhongshan Park) in June 1916. [Photo/Li Dazhao Memorial Hall]