books.google.fr - Mesopotamia, the land between the Tigris and the Euphrates rivers, was the site of the world's first stable civilizations, including Sumer, Babylonia, and Assyria. As people settled permanently along the Fertile Crescent, they built irrigation systems to bring water to crops and constructed levees as...https://books.google.fr/books/about/Empires_of_Ancient_Mesopotamia.html?id=6cBSI6TioRQC&utm_source=gb-gplus-shareEmpires of Ancient Mesopotamia