Doric Greek Region Peloponnese, Crete, Rhodes Era c. 800–100 BC; evolved into the Tsakonian language Language family Indo-European Hellenic Ancient Greek Western Doric Greek Language codes ISO 639-3 – Linguist List grc-dor Glottolog None Distribution of Greek dialects in Greek in the classical period.[1] Western group: Doric proper Northwest Doric Achaean Doric Central group: Aeolic Arcado-Cypriot Eastern group: Attic Ionic