Battle of Rodeo del Medio
1841 CE.
Shown on the map at -32.967°, -68.683°.
The Battle of Rodeo del Medio, fought in Mendoza Province, Argentina on 24 September 1841, took place between the Federalist army of Ángel Pacheco and the Unitarian army of Gregorio Aráoz de Lamadrid during the Argentine Civil Wars. The consequences of the Federalist victory would last for a decade.
Text from the Wikipedia article Battle of Rodeo del Medio, licensed CC BY-SA 4.0.