Shanghai massacre
War
The Shanghai massacre of 12 April 1927, the April 12 Purge or the April 12 Incident as it is commonly known in China, was the violent suppression of Chinese Communist Party organizations and leftist elements in Shanghai by forces supporting... Wikipedia
Date: April 12, 1927
Result: Split within the Kuomintang; End of the First United Front; Start of Autumn Harvest Uprising
Location: Shanghai and Republic of China