Note 52 — Chapter IV · PERSIAN OPERATIONS IN EUROPE: B.C. 493–490. MARATHON.
Reading edition
The significance of this last assertion is very striking. The reference is to the Ionian towns especially, which, on the indication of purely general evidence, might be supposed to have been tributary to Athens at the time to which Herodotus refers.
The question raised belongs obviously to a period much later than 479 B.C., and must be left for discussion in a work dealing with the period between the Persian and Peloponnesian wars.
Meanwhile I would refer English students of Greek history to the long note on the subject in Macan, “Herod.” iv., v., vi., vol. i. p. 302.