abstract:Heraclea Pontica (; Hērakleia Pontikē; modern day Karadeniz Ereğli, in the Zonguldak Province of Turkey, on the Black Sea), an ancient city on the coast of Bithynia in Asia Minor, at the mouth of the river Lycus. It was founded by the Greek city-state of MegaraFor report of Boeotian involvement see Pausanias 5.