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
Rolling Hills Country Day School Rolling Hills Country Day School Rolling Hills Country Day School is a nonsectarian independent Kindergarten to Grade 8 school located on the Palos Verdes Peninsula in Los Angeles County, California. More specifically it is located in the area of Palos Verdes known as Rolling Hills Estates. Rolling Hills Country Day School was founded in 1961. It is accredited by the Western Association of Schools and Colleges. The school has 395 students from approximately nine local communities (for 2017-2018), Lower School (Kindergarten through Grade 5): 231 students, Middle School (Grades 6 through 8): 150 students. 70 percent Caucasian, 21 percent Asian,