All times in UTC ·
Dashed edge = started before, or continues beyond, this day
Events on Tuesday 12 April 1927 1
1927Shanghai massacreChiang Kai-shek purges communists from the Nationalist movementNationalist troops and allied gangsters attacked communists and labour unions in Shanghai, killing hundreds of people and arresting many more. The purge ended the first alliance between the Kuomintang and the Chinese Communist Party. It is usually treated as the start of the Chinese Civil War.