Well, yes but their were numerous city states that arose individually in the pockets of the tigress and Euphrates's rivers. And by the way it was Sumer probably -history is only 72% factual- The...
The Greeks Answer: Mesopotamia in the Indus Valley, specifically Sumer , was the home of the first civilization in the 33rd centuy BCE.Even these were preceded by Eridu sometime around around 5000 BC.