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.
Non-Chalcedonianism
Within the Patriarchates of Alexandria and Antioch, the rejection of the Chalcedonian definition became a cause of schism. While the common people of Egypt and Syria mostly objected to the Council, the Byzantine-Greek minority that formed the ruling class mostly accepted the Council. These two parties vied for possession of the ancient sees of Alexandria and Antioch that formed, at the time, the third and fourth most prestigious sees in Christendom, respectively. Ultimately, neither group absolutely dominated either church. The end result was the existence of two distinct patriarchates of Alexandria and Antioch for almost 1500 years, continuing in the present time. What is now known as the Coptic Orthodox Church of Alexandria is the native Egyptian patriarchal faction of Alexandria that rejected Chalcedon, whereas the Greek Orthodox Church of Alexandria is composed of those who accepted Chalcedon. For Syrians, the Syriac Orthodox Church forms the patriarchal faction of the native Syrian-Semitic population whereas the Greek Orthodox Church of Antioch is composed of those who accepted Chalcedon.