Note 245 — Chapter VIII
E. J. (Edward James) Chinnock translation
Callisthenes—as quoted in Polybius, xii. 18—reckoned the Grecian mercenaries of Darius at 30,000, and the cavalry at 30,000. Arrian enumerates 90,000 heavy-armed, not including the cavalry. Yet Polybius tries to prove that there was not room even for the 60,000 troops mentioned by Callisthenes.