Note 133 — Chapter VIII · ARTEMISIUM.
Reading edition
A nine-knot steamer takes about seven hours from Chalkis to Stylida, which is about the same distance as from Chalkis to Artemisium. There is no question that a trireme could maintain a high rate of speed for hours together. Nor is there reason to doubt Herodotus’ statement that the voyage of the Persian fleet from Therma to the Sepiad strand took but one day, a distance, that is to say, of one hundred and twenty miles in fourteen hours of daylight, over eight miles an hour—even supposing that such a large number of vessels could put out and put in in the dark. The probability is, however, that the fleet never went to Chalkis at all; or, if it did, that it moved up the Euripus after receiving the news of the disaster to the Persian fleet, so as to be ready to go to Artemisium without delay so soon as the storm ceased.