Strabo Geography 2.4.8

[8] Of the many promontories formed by Europe, a better description is given by Polybius than by Eratosthenes; but even his is not sufficient. Eratosthenes only names three; one at the Pillars of Hercules, where Iberia is situated; a second at the Strait of Sicily, and containing Italy; the third terminated by the Cape of Malea, ¹ comprising all the countries situated between the Adriatic, the Euxine, and the Don. The two former of these Polybius describes in the same manner as Eratosthenes, but the third, which is equally terminated by the Cape of Malea ² and Cape Sunium, ³ [he makes to] comprehend the whole of Greece, Illyria, and some portion of Thrace. [He supposes] a fourth, containing the Thracian Chersonesus and the countries contiguous to the Strait, ⁴ betwixt Sestos and Abydos. This is occupied by the Thracians. Also a fifth, about the Kimmerian Bosphorus and the mouth of the Maeotis. Let us allow [to Polybius] his two former [promontories], they are clearly distinguished by unmistakeable bays; the first by the bay between Calpé ⁵ and the Sacred Promontory ⁶ where Gades ⁷ is situated, as also by the sea between the Pillars and Sicily; the second ⁸ by the latter sea and the Adriatic, ⁹ although it may be objected that the extremity of Iapygia, ¹⁰ being a promontory in itself, causes Italy to have a double cape. But as for the remaining [promontories of Polybius], they are plainly much more irregular, and composed of many parts, and require some other division. So likewise his plan of dividing [Europe] into six parts, similar to that of the promontories, is liable to objection.

However, we will set to rights each of these errors separately, as we meet with them, as well as the other blunders into which he has fallen in his description of Europe, and the journey round Africa. For the present we think that we have sufficiently dwelt on those of our predecessors whom we have thought proper to introduce as testimonies in our behalf, that both in the matter of correction and addition we had ample cause to undertake the present work.