Ionic Greek Region Circum-Aegean Era c. 1000–300 BC Language family Indo-European Hellenic Ancient Greek Eastern Ionic Greek Language codes ISO 639-3 – Linguist List grc-ion Glottolog None Distribution of Greek dialects in Greece in the classical period.[1] Western group: Doric proper Northwest Doric Achaean Doric Central group: Aeolic Arcado-Cypriot Eastern group: Attic Ionic