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
Agriculture in ancient Tamil country of soil, the kinds of crops that can be grown on them and the various irrigation schemes suitable for a given region.These were also in madras,thanjore(now as Chennai,Thanjavur respectively). Among the five geographical divisions of the Tamil country in Sangam literature, the Marutam region was the most fit for cultivation, as it had the most fertile lands. The prosperity of a farmer depended on getting the necessary sunlight, seasonal rains and the fertility of the soil. Among these elements of nature, sunlight was considered indispensable by the ancient Tamils, because if rains fail other methods of irrigation could be put