Battle of Lilybaeum
217 BCE.
Shown on the map at 37.800°, 12.433°.
The Battle of Lilybaeum was the first clash between the navies of Carthage and Rome in 218 BC during the Second Punic War. The Carthaginians had sent 35 quinqueremes to raid Sicily, starting with Lilybaeum. The Romans, warned by Hiero of Syracuse of the coming raid, had time to intercept the Carthaginian contingent with a fleet of 20 quinqueremes and managed to capture several Carthaginian ships.
Text from the Wikipedia article Battle of Lilybaeum, licensed CC BY-SA 4.0.