The Early Dynastic period in Mesopotamia, spanning 2900-2350 BCE, saw the rise of independent city-states like Uruk and Ur. This era marked the flourishing of Sumerian civilization, with advancements in writing, agriculture, and architecture under powerful kings claiming divine authority. Mesopotamia's geography, between the Tigris and Euphrates rivers, provided fertile soil for agriculture and facilitated urban growth. Cities became political, economic, and religious centers, with palaces and temples as focal points. The period ended with Sargon of Akkad's conquest, establishing the Akkadian Empire.