Battle of Protopachium
88 BCE.
Shown on the map at 41.600°, 35.000°.
The Battle of Protopachium was fought in 89 BC at the start of the First Mithridatic War, between the Roman Republic and the Pontic Empire. The battle ended in a Roman defeat and their expulsion from Asia Minor.
Text from the Wikipedia article Battle of Protopachium, licensed CC BY-SA 4.0.