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
Economy of ancient Tamil country and arrow of the Cheras; some of them contain portraits and written legends. Numismatists have used these coins to establish the existence of the Tamil kingdoms during the Sangam age and associate the kings mentioned in the legends to a specific period. A large number of Roman coins have been found in Coimbatore and Madurai districts, providing more evidence for the brisk maritime trade between Rome and Tamilakam. Economy of ancient Tamil country The economy of the ancient Tamil country (Sangam era: 200 BCE – 200 CE) describes the ancient economy of a region in southern India that mostly covers