Chalcedon
Chalcedon ( or ;
, sometimes transliterated as "Chalkedon") was an ancient maritime town of Bithynia, in Asia Minor. It was located almost directly opposite Byzantium, south of Scutari (modern Üsküdar) and it is now a district of the city of Istanbul named Kadıköy. The name "Chalcedon" is a variant of Calchedon, found on all the coins of the town as well as in manuscripts of Herodotus's "Histories", Xenophon's "Hellenica", Arrian's "Anabasis", and other works. Except for a tower, almost no above-ground vestiges of the ancient city survive in Kadıköy today; artifacts uncovered at Altıyol and other excavation sites are on display at the Istanbul Archaeological Museum.
Kingdom of Chalcis
Originally, Chalcis was a city in Coele-Syria. When the Seleucid influence in the area began to dissipate, the Itureans created the Kingdom of Chalcis, which stretched from the Mediterranean Sea to near Damascus. They made Chalcis the capital of their realm, Baalbek was the center of worship. The founder of the kingdom seems to have been Ptolemaeus, son of Menneus, an Ituraean dynast.