About Dong Biwu
Dong Biwu (Chinese: 董必武; pinyin: Dǒng Bìwǔ; Wade–Giles: Tung Pi-wu; 5 March 1886 – 2 April 1975) was a Chinese communist revolutionary, long-time ally of Mao Zedong and politician, who served as acting Chairman of the People's Republic of China between 1972 and 1975. Throughout the first half of the 1920s, Dong remained a member of both the Kuomintang and the Communist Party. Historians have attributed this curious fact not to any cunning political maneuvering but simply to Dong's special relationship with Mao since their first meeting at the founding of the Communist Party in 1921.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.