The Akkadian Empire was the first successful empire to last beyond a generation and see the peaceful succession of kings .
Eventually Sumer was unified by Eannatum , but the unification was tenuous and failed to last as the Akkadians conquered Sumeria in 2331 BC only a generation later .
The Akkadians   was the first successful empire to last beyond a generation and see the peaceful succession of kings .
Eventually Sumer was unified by Eannatum , but the unification was tenuous and failed to last as the Akkadians conquered Sumeria in 2331 BC only a generation later .