Battle of Thermopylae
322 BCE.
Shown on the map at 38.805°, 22.563°.
The Battle of Thermopylae was fought in 323 BC between the Macedonians and a coalition of armies including Athens and the Aetolian League in the pass of Thermopylae during the Lamian War.
Text from the Wikipedia article Battle of Thermopylae (323 BC), licensed CC BY-SA 4.0.