Battle of Baton Rouge
1779 CE.
Shown on the map at 30.450°, -91.133°.
The Battle of Baton Rouge was a brief siege during the Anglo-Spanish War that was decided on September 21, 1779. Fort New Richmond (present-day Baton Rouge, Louisiana) was the second British outpost to fall to Spanish arms during Bernardo de Gálvez's march into West Florida.
Text from the Wikipedia article Battle of Baton Rouge (1779), licensed CC BY-SA 4.0.