jan 1, 3100 BC - Mesopotamian City-States – (c. 3100 BCE)
Description:
City-states like Uruk and Ur emerged in Mesopotamia, each with its own ruler and patron deity. These urban centers featured temples, marketplaces, and administrative buildings. Mesopotamia became powerful through innovations like cuneiform writing, legal codes, and irrigation, earning its title as the "Cradle of Civilization."