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
La Jolla Country Day School funded by students' parents. La Jolla Country Day School is accredited by the California Association of Independent Schools (CAIS) and the Western Association of Schools and Colleges (WASC). In addition, the school is a member of the National Association of Independent Schools (NAIS) and the Council for the Advancement and Support of Education (CASE). La Jolla Country Day School La Jolla Country Day School (known informally as "Country Day" or "LJCDS") is an independent school in La Jolla, a community of San Diego, California. The school contains a lower school (consisting of nursery through fourth grade), a middle school (grades