In 1921, the Chinese Communist Party (CCP) was founded by Chen Duxiu and Li Dazhao in Shanghai as a study society, and an informal political network.
After the founding of the Republic of China in 1912, a plethora of parties appeared to compete for the upcoming National Assembly elections.
After the failed Second Revolution against Yuan Shikai, the Nationalist leadership fled China and regrouped as the Chinese Revolutionary Party.
Following the 1925 Yunnan–Guangxi War, ex-Nationalists who adhered to the expelled Chen Jiongming and Tang Jiyao created the China Public Interest Party (CPIP).
Left-wing Nationalists and non-doctrinaire Communists formed the genesis of the Chinese Peasants' and Workers' Democratic Party (CPWDP) in the wake of the purge.
The Revolutionary Committee of the Kuomintang, CPWDP, CDL, and the CPIP joined the Communists' United Front which also included several political pressure groups.
In 1921, the CCP was founded by Chen Duxiu and Li Dazhao in Shanghai as a study society and an informal network.