The anti-communist coup of April 12, 1927, led by [[蒋介石|蔣介石|jiang3 jie4 shi2]]; often referred to as the [[反革命政变|反革命政變|fan3 ge2 ming4 zheng4 bian4]] or the [[四一二惨案|四一二慘案|si4 yi1 er4 can3 an4]] in Mainland China.

The counterrevolutionary coup of April 12, 1927, in which Chiang Kai-shek's forces attacked the communists in Shanghai.

The massacre of April 12, 1927; the violent suppression of Communist Party organizations in Shanghai by the military forces of Chiang Kai-shek and the Kuomintang