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
Rye Country Day School Rye Country Day School Rye Country Day School, also known as Rye Country Day or RCDS, is an independent, co-educational college preparatory school located in Rye, New York. Its Upper School (grades 9–12), Middle School (5–8), and Lower School (Pre-Kindergarten-4) enroll a total of 886 students on its 26-acre campus. Rye Country Day attracts students from over 40 school districts in the tri-state area. Rye Country Day School was founded in 1869, when a group of local parents contacted the Reverend William Life and his wife, Susan, who ran a small school in Pennsylvania. The Lifes came to Rye and