87. Darius then having gazed upon the Pontus sailed back to the bridge, of which Mandrocles a Samian had been chief constructor; and having gazed upon the Bosphorus also, he set up two pillars 631 by it of white stone with characters cut upon them, on the one Assyrian and on the other Hellenic, being the names of all the nations which he was leading with him: and he was leading with him all over whom he was ruler. The whole number of them without the naval force was reckoned to be seventy myriads 632 including cavalry, and ships had been gathered together to the number of six hundred. These pillars the Byzantians conveyed to their city after the events of which I speak, and used them for the altar of Artemis Orthosia, excepting one stone, which was left standing by the side of the temple of Dionysus in Byzantion, covered over with Assyrian characters. Now the place on the Bosphorus where Darius made his bridge is, as I conclude, 633 midway between Byzantion and the temple at the mouth of the Pontus.