Chalcedon
A city of Bithynia on the Asian shore of the Bosporus, opposite Constantinople. The council of 451 met here, in the church of the martyr Euphemia.
Chalcedon stood on the Asian side of the Bosporus, in the Roman province of Bithynia. Evagrius describes the shrine of the martyr Euphemia where the council met: a group of three buildings on rising ground about two stadia from the water, with Constantinople in view directly opposite (Evagrius, Ecclesiastical History 2.3). At the council’s sixth session Marcian gave the city the title of metropolis in honour of the martyr and of the bishops, without taking anything from the rights of Nicomedia (Council of Chalcedon session 6). The site is now the Kadıköy district of Istanbul.
What happened here
- October AD 451, firm dateThe Council of Chalcedon
A council called by the emperor Marcian confesses Christ as one person in two natures, divine and human, and ranks Constantinople next after Rome. The Greek and Latin churches receive it; the Coptic, Syriac Orthodox, Armenian and Ethiopian churches do not.