Ιόνια / Ιωνία

Ionian Islands:

In Ancient Greek the adjective Ionios (Ἰόνιος) was used as an epithet for the sea between Epirus and Italy in which the Ionian Islands are found because Io swam across it. Latin transliteration, as well as Modern Greek pronunciation, may suggest that the Ionian Sea and Islands are somehow related to Ionia, an Anatolian region; in fact the Ionian Sea and Ionian Islands are spelled in Greek with an omicron (Ιόνια), whereas Ionia has an omega (Ιωνία). In Modern Greek this is purely a spelling distinction, but the different pronunciations in Ancient Greek would have eliminated the risk of confusion between the two areas. Furthermore, [they are accented differently and] the proper adjective for Ionia is Ionic, not Ionian.