Euboea

Euboea was a large island off the eastern coast of central Greece (Boeotia and Locris). Chalcis seemed to be the principal city of Euboea.

Euboea was inhabited by Euboean tribes known as the Abantes, because the island was originally called Abantis. It was called Euboea because Zeus brought Io to the island to seduce her, but changed her into a white cow when Hera arrived. Thereafter, the island was renamed to Euboea which means "Island of Fine Cattle" or just the "Cows".

Elephenor, son of Chalcodon, led 40 ships to Troy. His two lieutenants were Demophon and Acamas, sons of Theseus. After the war, Demophon and his brother left Euboea and won back Athens, either because Menestheus the usurper died in Athens, or he had migrated to the island of Menestheus.