Fighting Hills massacre
1840 CE.
Shown on the map at -37.497°, 141.424°.
The Fighting Hills massacre occurred on 8 March 1840 when Victorian Western District squatters killed 51 Aboriginal people of the Konongwootong gundidj clan (Jardwadjali) at The Hummocks, near Wando Vale, Victoria, Australia.
Text from the Wikipedia article Fighting Hills massacre, licensed CC BY-SA 4.0.