Early Dynastic Period (Mesopotamia) Early Dynastic Period (Mesopotamia) The Early Dynastic period (abbreviated ED period or ED) is an archaeological culture in Mesopotamia (modern-day Iraq) that is generally dated to c. 2900–2350 BC and was preceded by the Uruk and Jemdet Nasr periods. It saw the invention of writing and the formation of the first cities and states. The ED itself was characterized by the existence of multiple city-states: small states with a relatively simple structure that developed and solidified over time. This development ultimately led to the unification of much of Mesopotamia under the rule of Sargon, the first monarch of the Akkadian
Miami Country Day School Country Day School: The following sports are offered to girls at Miami Country Day School: It is located on , which includes a 25 yard by 25 meter Aquatic Center and new Athletic fields and gymnasium with synthetic turf. A state of the art Media and resources center with a broadcast studio, a 4 tier parking garage and the over 40,000 square foot Center for the Arts. Miami Country Day School is accredited or a member of the following organizations: The school was featured in the December 2006 issue of W Magazine as Miami's "hot school". Miami Country Day School