Note 6 — Chapter II · PERSIAN AND GREEK IN ASIA. THE SCYTHIAN EXPEDITION.
Reading edition
As it is important to note the exact nature of the traceable evidence on which Herodotus bases the various details he gives of the campaign, it may be pointed out in the present case that he states that Darius set up pillars with bilingual inscriptions at the point of crossing, and that the Byzantians removed them to their city, and used them for the altar of the temple of Artemis Orthosia. One stone, covered with Assyrian letters, was left in the temple of Dionysus.
This is apparently the statement of one who has seen them there; and the sentence which follows, in which Herodotus gives his own view as to the position of the bridge, tends to confirm this impression.
Those who have seen the terrific current off Seraglio Point at Constantinople will understand that the bridge could hardly have been constructed opposite Kalchedon.
Herodotus’ residence at Samos would enable him to obtain some sort of information with regard to the work of a Samian architect. He must have seen, too, the picture of the bridge, with the accompanying inscription, dedicated by Mandrocles, the engineer, in the temple of Hera.