Battle of Pagallos
1817 CE.
Shown on the map at 8.530°, -61.000°.
The Battle of Pagallos (Spanish: Batalla de Pagallos), or, alternatively Pagayos, was a battle on 8 July 1817 during the Venezuelan War of Independence. In the battle, ships under Antonio Díaz carrying materiel to Simón Bolívar's Patriot army were attacked by eleven Royalist ships in the Orinoco, near the island of Pagallos. Patriots took heavy losses but successfully forced Royalists out of the Orinoco.
Text from the Wikipedia article Battle of Pagallos, licensed CC BY-SA 4.0.