Dioceses of the Church of the East to 1318 to represent them. None of these four dioceses is mentioned again, and it is not clear when they lapsed. By the end of the 5th century there were at least three East Syriac dioceses in the Sassanian province of Media in western Iran. Canon XXI of the synod of Isaac in 410 foreshadowed the extension of the metropolitan principle to the bishops of Beth Madaye and other relatively remote regions. Hamadan (ancient Ecbatana) was the chief city of Media, and the Syriac name Beth Madaye (Media) was regularly used to refer to the East Syriac diocese of Hamadan as well
Armavir (ancient city) Armavir (ancient city) Armavir () was a large commercial city and the capital of ancient Armenia during the reign of the Orontid Dynasty. It is located 1 km west of the 17th-century village of Armavir. The area of ancient Armavir was inhabited since the 6th millennium BC. Various obsidian instruments, bronze objects and pottery have been found from that period. Armavir was regarded as an ancient capital of Armenia, said to have been founded by King Aramais in 1980 BC. During the first half of the 8th century BC, King Argishti I of Urartu built a fortress in the area