Battle of Sphacteria
1825 CE.
Shown on the map at 36.930°, 21.666°.
The Battle of Sphacteria took place during the Greek War of Independence on 8 May 1825 in Sphacteria between the Egyptian forces of Ibrahim Pasha and Greek forces led by Captain Anastasios Tsamados along with Alexandros Mavrokordatos.
Text from the Wikipedia article Battle of Sphacteria (1825), licensed CC BY-SA 4.0.