from the 1st century BC Chalcedon originated as a
Megarian colony in 685 BC. The colonists from Megara settled on a site that was viewed in antiquity as so obviously inferior to that visible on the opposite shore of the Bosphorus, that the 6th-century BC Persian general
Megabazus allegedly remarked that Chalcedon's founders must have been blind. Indeed, Strabo and Pliny relate that the
oracle of Apollo told the Athenians and Megarians who founded Byzantium in 657 BC to build their city "opposite to the blind", and that they interpreted "the blind" to mean Chalcedon, the "City of the Blind". Nevertheless, trade thrived in Chalcedon; the town flourished and built many temples, including one to
Apollo, which had an oracle. Chalcedonia, the territory dependent upon Chalcedon, stretched up the Anatolian shore of the Bosphorus at least as far as the temple of
Zeus Urius, now the site of
Yoros Castle, and may have included the north shore of the Bay of
Astacus which extends towards
Nicomedia. Important villages in Chalcedonia included Chrysopolis (the modern
Üsküdar) and Panteicheion (
Pendik). Strabo notes that "a little above the sea" in Chalcedonia lies "the fountain Azaritia, which contains small crocodiles". In its early history Chalcedon shared the fortunes of Byzantium. Later, the 6th-century BC Persian
satrap Otanes captured it. The city vacillated for a long while between the
Lacedaemonian and the
Athenian interests.
Darius the Great's bridge of boats, built in 512 BC for his
Scythian campaign, extended from Chalcedonia to
Thrace. Chalcedon formed a part of the
kingdom of Bithynia, whose king
Nicomedes willed Bithynia to the Romans upon his death in 74 BC. == Roman city ==