For the first time the Black Sea was mentioned in documents that are dated back to the V century BC. It is known that Jason and the Argonauts held their way by the Black Sea to Colchis in search of the Golden Fleece, writes fishki.net.
The Greek name of the sea - Pontus Axinus (Greek Πόντος Ἄξενος.), which means "Inhospitable Sea". It is believed that the sea got its name because of the difficulties with navigation. When the Greek colonists based on its coasts, the sea has been called Euxine (Gr. Πόντος Εὔξενος, «Hospitable Sea").