The most influential of the defenders of this late date was Rhys Carpenter. See his “The Antiquity of the Greek Alphabet,” American Journal of Archaeology 37 (1933), pp. 8–29. The discovery of Phrygian inscriptions (a daughter script of Greek) from Gordion dating to the middle and second half of the eighth century renders the seventh century date impossible. Rhys Carpenter dated the development of the Phrygian script from the Greek after 600.