Zhongli incident
1977 CE.
Shown on the map at 24.954°, 121.222°.
The Zhongli Incident or Chung-li Incident was a democracy movement in the Taiwanese town of Zhongli (now Zhongli District, Taoyuan City) in 1977, after a voter reported witnessing the Kuomintang rigging the election.
Text from the Wikipedia article Zhongli incident, licensed CC BY-SA 4.0.