Mesopotamia [a] is a historical region of West Asia situated within the Tigris–Euphrates river system, in the northern part of the Fertile Crescent.Today, Mesopotamia is known as present-day Iraq. [1] [2] In the broader sense, the historical region of Mesopotamia also includes parts of present-day Iran, Turkey, Syria and Kuwait.[3] [4]Mesopotamia is the site of the earliest …