ON THIS DAY ·
Shanghai massacre
12 Apr 1927 — Chiang turns against his communist allies. In one morning, Green Gang enforcers and soldiers kill hundreds of unionists and militants; thousands more are killed here and across the south in the following weeks. The First United Front breaks apart at the moment of its victory, setting the course of events after 1927.
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The moment in context
The Nanjing Decade, the Nationalists’ main period of state-building from 1927 to 1937, began by destroying the alliance that had helped bring them to power. On 12 April 1927 Chiang Kai-shek’s forces turned on Communists and unionists in Shanghai (the ◆). National Revolutionary Army soldiers and Green Gang enforcers killed hundreds that morning; thousands more were killed across the south in the following weeks. The First United Front broke as the Northern Expedition approached victory.
From Shanghai purge and Nanjing decade, chapter 5 of China in Revolution, 1911–1949 (1929).
The place: Shanghai massacre — map and full story →
Teach this in 5 minutes
- Why it happened — Class conflict within the alliance. The United Front joined a revolution to an army whose officers and supporters came in part from landlord and merchant families. Peasant associations…
- The turn — Shanghai, 12 April 1927. Chiang’s victory in Shanghai settled the immediate struggle inside the alliance, but it also shaped the next twenty-two years of Chinese politics.…
- What it changed — The revolution goes rural. The survivors found refuge where provincial authority was weak: first in the mountains of Jinggangshan, then on the Jiangxi–Fujian border. Mao and…
Then ask the room: Was the Nanjing decade a real modernization interrupted, or a weak state exposed by Japan? The argued answer is on the chapter page →
The atlas that shows it
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