Battle of Scarpheia
145 BCE.
Shown on the map at 38.800°, 22.550°.
The Battle of Scarpheia took place in 146 BC between forces of the Roman Republic, led by the praetor Quintus Caecilius Metellus Macedonicus, and an Achaean League force led by Critolaos of Megalopolis. The battle was a resounding Roman victory, surprising and destroying the main Achaean force at the outbreak of war and allowing the Romans to bring the conflict to a swift end not long after.
Text from the Wikipedia article Battle of Scarpheia, licensed CC BY-SA 4.0.