Pingdingshan massacre
1932 CE.
Shown on the map at 41.834°, 123.926°.
The Pingdingshan massacre (Chinese: 平頂山慘案) was a massacre committed by the Imperial Japanese Army in the village of Pingdingshan, Liaodong, (now part of Dongzhou, Liaoning) on 16 September 1932.
Text from the Wikipedia article Pingdingshan massacre, licensed CC BY-SA 4.0.