Metropolis of Pergamon
The Metropolis of Pergamon () was an ecclesiastical territory (diocese) of the Ecumenical Patriarchate of Constantinople in western Asia Minor, modern Turkey. Christianity in the city of Pergamon (modern Bergama), was introduced already from 1st century AD, while the local Christian community comprised one of the seven Churches of Asia mentioned at the Book of Revelation, written by John of Patmos. The bishopric of Pergamon was twice promoted to a metropolis: during the 13th–14th centuries, as well as for a short period in 1922. Today the "Metropolis of Pergamon and Adramyttium" is the see of a titular metropolitan.
Metropolis of Pergamon
In February 1922, while most of the region was part of the Greek-controlled Smyrna Zone, the metropolis of Pergamon and Adramyttium was established as part of the general reforms in local religious administration. However, following the developments of the Greco-Turkish War of 1919–1922 and the subsequent population exchange between Greece and Turkey, the remaining Orthodox population was forced to leave the area.