Chalcedon
The site of Chalcedon is located on a small peninsula on the north coast of the Sea of Marmara, near the mouth of the Bosphorus. A stream, called the Chalcis or Chalcedon in antiquity and now known as the Kurbağalıdere (Turkish: "stream with frogs"), flows into Fenerbahçe bay. There Greek colonists from Megara in Attica founded the settlement of Chalcedon in 685 BC, some seventeen years before Byzantium.
Cleonae (Athos)
Cleonae or Cleonæ or Kleonai () was an ancient city on the "Acte" or "Akte" (Ακτή) peninsula (now Mount Athos), the easternmost of the three peninsulas forming the ancient Chalcidice, on its western coast, south of Thyssus (Thyssos). Thucydides says that among the cities of the aforementioned peninsula, Sane was colony of Andros, while Thyssus, Cleonae, Acrothoum, Olophyxus and Dium had a heterogeneous population of bilingual barbarians formed by a few Chalcidians and, the rest, Pelasgians, Bisaltians, Crestonians and Edoni. Strabo points out that its primitive populated was composed of Pelasgians from Lemnos. According to Strabo, it was colonized by Euboean colonists from Chalcis. It was a member of the Delian League as it appears on the tribute lists to Athens during the Peloponnesian War.