1911 Encyclopædia Britannica/Hellespont

HELLESPONT (i.e. “Sea of Helle”; variously named in classical literature Ἑλλήσποντος, ὁ Ἕλλης πόντος, Hellespontum Pelagus, and Fretum Hellesponticum), the ancient name of the Dardanelles (q.v.). It was so-called from Helle, the daughter of Athamas (q.v.), who was drowned here. See Argonauts.