Battle of Pequereque
1813 CE.
Shown on the map at -18.831°, -66.683°.
The Battle of Pequereque was a clash which took place on 19 June 1813, during the second Upper Peru campaign of the Argentine War of Independence, between scouting forces of the United Provinces Army of the North and the royalist Army of Peru. The republican cavalry of the Army of the North, led by Colonel Cornelio Zelaya, prevailed over the royalists, under the command of Colonel Pedro Olañeta.
Text from the Wikipedia article Battle of Pequereque, licensed CC BY-SA 4.0.