The greek dialects that existed before philip of macedonia conquered greece were:

The Greek Ionic-Attic, spoken in Attica, the region of Athens, the Aegean Islands, the micro-Asiatic Ionia and the Ionian colonies overseas; The Doric Greek, spoken in the Peloponnese of the southeast, Crete and the Micro-Asian Doria; The Greek Aeolian, spoken in Thessaly, Boeotia, the Northern Cyclades Islands, The Northwestern Greek, spoken in the Peloponnese of the northwest, central Greece and Epirus; The Greek arcado-Cypriot, the last stronghold of the Mycenaean Greek, belonging to the descendants of the surviving Mycenaean refugees of the Dark Ages settled in Arcadia and Cyprus and the Greek panfilio, they all mingle creating Koine Greek.

Im migration prohibition.