section_path: Government
section_name: Government
paragraph_text: Government
  
  The geography of Mesopotamia had a profound impact on the political development of the region. Among the rivers and streams, the Sumerian people built the first cities, along with irrigation canals which were separated by vast stretches of open desert or swamp where nomadic tribes roamed. Communication among the isolated cities was difficult and, at times, dangerous. Thus, each Sumerian city became a city-state, independent of the others and protective of its independence.
  
  At times, one city would try to conquer and unify the region, but such efforts were resisted and failed for centuries. As a result, the political history of Sumer is one of almost constant warfare. Eventually Sumer was unified by Eannatum. The unification was tenuous and failed to last, as the Akkadians conquered Sumer in 2331 BC only a generation later. The Akkadian Empire was the first successful empire to last beyond a generation and see a peaceful succession of kings. The empire was relatively short-lived, as the Babylonians conquered them within only a few generations.