Battle of Curapalihue
1817 CE.
Shown on the map at -36.866°, -72.716°.
The Battle of Curapalihue (4 April 1817) fought in Chile, was a minor encounter between South American rebels and Spanish royalists, during the South American wars of independence. The result was a defeat for the royalists.
Text from the Wikipedia article Battle of Curapalihue, licensed CC BY-SA 4.0.