Euthymenes
Euthymenes of Massalia (; Ancient Greek: Εὐθυμένης ὁ Μασσαλιώτης Euthymenēs ho Massaliōtēs; fl. early sixth century BCE) was a Greek explorer from Massalia (modern Marseille), who explored the coast of West Africa as far, apparently, as a great river, of which the outflow made the sea at its mouth fresh or brackish.