Ionia, ancient name of the western districts of Asia Minor between the Hermus and the Mæander, with adjacent islands; was colonised by Greeks 1050 B.C., and its chief cities, including Miletus, Ephesus, Samos, Chios, and later Smyrna, formed the Ionian League; the Ionians were noted for wealth, art, and luxury; coming under Persian yoke in 557 B.C. they deserted to Greece 479 B.C., in the great war, and became again independent; from 387 B.C. they were again under Persia till Alexander the Great took them and merged their history in that of the surrounding peoples.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Iona * Ionian Islands