Ancient Mesopotamia, the cradle of civilization, flourished between the Tigris and Euphrates rivers from 3500 to 539 BCE. This region saw the rise of powerful empires like Sumer, Akkad, Babylon, and Assyria, each contributing to the development of writing, law, and urban society. Mesopotamian achievements in agriculture, technology, and governance laid the foundation for later civilizations. Their legacy includes cuneiform script, Hammurabi's Code, ziggurats, and influential myths like the Epic of Gilgamesh, which continue to shape our understanding of early human societies.