The Histories · 8.65

Moreover Dicaios the son of Theokydes, an Athenian, who was an exile and had become of great repute among the Medes at this time, declared that when the Attic land was being ravaged by the land-army of Xerxes, having been deserted by the Athenians, he happened then to be in company with Demaratos the Lacedemonian in the Thriasian plain; and he saw a cloud of dust going up from Eleusis, as if made by a company of about thirty thousand men, and they wondered at the cloud of dust, by what men it was caused. Then forthwith they heard a sound of voices, and Dicaios perceived that the sound was the mystic cry Iacchos; but Demaratos, having no knowledge of the sacred rites which are done at Eleusis, asked him what this was that uttered the sound, and he said: "Demaratos, it cannot be but that some great destruction is about to come to the army of the king: for as to this, it is very manifest,…

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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