Note 179 — Chapter XI · THE CAMPAIGN OF PLATÆA.
Reading edition
It is sometimes assumed from H. vii. 229, that the usual quota was one helot to each hoplite; but a more probable interpretation of that passage is that the reference is to the personal armed servant who accompanied each hoplite to war, and that it cannot be deduced therefrom that the body of these formed the whole number of the helots present on an ordinary occasion.
Modern criticism of the impossibility of despatching so large a force unknown to the Athenian embassy is not convincing. We do not know the place at which it gathered. It is extremely likely that a large number of helots were drawn from Messenia, and joined the army at Orestheion, where the great route from Messenia meets the route from Sparta by way of the valley of the Eurotas.