Mesopotamia, located between the Tigris and Euphrates rivers, is known as the 'cradle of civilization' where various cultures, including Sumer, Babylon, Akkad, and Assyria, flourished from around 5000 BCE to 612 BCE. Its society was hierarchically organized, relying on agricultural innovations such as irrigation, which led to the establishment of complex communal structures. Additionally, Mesopotamian contributions to art, architecture, and governance, including the creation of written law codes like the Code of Hammurabi, have had a lasting impact on human civilization.