Napalpí massacre
1924 CE.
Shown on the map at -26.917°, -60.112°.
The Napalpí massacre occurred on 19 July 1924, in Napalpí, a rural village in the Chaco Province of Northeast Argentina. It involved the massacre of 400 Indigenous people of the Toba and Mocoví ethnicity by the Argentine Police and ranchers.
Text from the Wikipedia article Napalpí massacre, licensed CC BY-SA 4.0.