Strabo, Geography
H.C. Hamilton, Esq., W. Falconer, M.A., Ed.

But how (according to Ephorus) are there three tribes of Greeks who inhabit the peninsula? Is it because anciently the Athenians and Ionians were the same people? In that case the Dorians and the Æolians should be considered as the same nation, and then there would be (only) two tribes (and not three, inhabiting the peninsula). But if, following modern practice, we are to distinguish nations according to dialects, there will be four nations, as there are four dialects. But this peninsula is inhabited, especially if we adopt the division by Ephorus, not only by Ionians, but also by Athenians, as we have shown in the account of each particular place.

It was worth while to controvert the positions of Ephorus, Apollodorus however disregards all this, and adds a seventeenth to the sixteen nations, namely, the Galatians; although it is well to mention this, yet it is not required in a discussion of what Ephorus relates or omits; Apollodorus has assigned as the reason of' the omission, that all these nations settled in the peninsula subsequently to the time of Ephorus.