Civilizations of the fertlile Crescent

Sumer
The city states that developed along the rivers of southern Mesopotamian between 3500 B.C.E and 2400 B.C.E are known together as Sumer , The citizens of the city whose origins are unknown migrated from the north. Sumerians are credited with many inventions such as the wagon wheel and plow, casting objects in copper and bronze, and created a system of writing although writing was also being developed in Egypt at time.
Sumerians pressed wedge shaped symbols called Cuneiform symbols into clay tablets using writing sticks called stylus to keep bank records. The Sumerians had impressive…