Mesopotamia Old Babylonian remains at Nippur and Ur. Among the textual sources on building construction and associated rituals are Gudea's cylinders from the late 3rd millennium are notable, as well as the Assyrian and Babylonian royal inscriptions from the Iron Age. Mesopotamia Mesopotamia is a historical region in Western Asia situated within the Tigris–Euphrates river system, in modern days roughly corresponding to most of Iraq, Kuwait, parts of Northern Saudi Arabia, the eastern parts of Syria, Southeastern Turkey, and regions along the Turkish–Syrian and Iran–Iraq borders. The Sumerians and Akkadians (including Assyrians and Babylonians) dominated Mesopotamia from the beginning of written
Agriculture in ancient Mesopotamia east, rising from 200-500 m in altitude, and which are now known as Jazirah (from the Arabic, "al-jazayra", 'the island'). Thus, the rivers flow through valleys which are 1-10 km wide. The southern half of Mesopotamia, which is the part properly called Mesopotamia from a geophysical point of view, since it is where the Tigris and Euphrates flow close to one another, is a vast plain, which is 150-200 km wide and has only a very slight incline, decreasing to the south until it is nearly non-existent. This encourages the development of river braiding, sudden changes of course, and the