Answer:
1. Mesopotamian city-states were united
Sometime before Before 2300 BC, Mesopotamia developed city-states that had the Akkadians and the Sumerians. Both of them often vying for control. They gradually became united by forming alliances.
2.The Akkadian Empire was founded.
Around the year 2300 BC, Sargon the Great founded what is considered to be the first empire in the world which would go on to exist for some 200 years. By conquering a Sumerian rival, he gained their land and kept campaigning and adding more land to the empire.
3. Sargon died.
After Sargon died, the empire kept expanding and reached its greatest extent under his grandson Naram-Sin.
4. Invasions brought the empire to an end.
Eventually though the empire began to decline with a number of revolts threatning them. The empire managed to put down some of these revolts to a degree but they eventually fell to a people known as the Gutians.
5. City rulers regained control
After the fall of the empire, the region went through a period where there was no main authority and so the people reverted back to their city-states.
