After the defeat of the Romans by Pyrrhus at Heraclea (280), Fabricius was sent to treat for the ransom and exchange of the prisoners.
Their chief colonies in this sea were Astacus and Heraclea in Bithynia, and another Heraclea in the Crimea.
The Spartans failed to safeguard Heraclea against the Oetaeans and Thessalians, and for a short time were displaced by the Thebans (420).
Half a day's journey beyond Sura, on the Mesopotamian side of the river, are the extensive ruins of Haragla (Heraclea) and Rakka, once the capital of Harun al-Rashid (Nicephorium of Alexander; Callinicus of the Seleucids and Romans).
400), Greek geographer, was born at Heraclea in Pontus.