Ancient Civilizations By bratanovn11 4000 BCE 4000 cities develop in Iraq Period: 4000 BCE to 500 BCE Mesopotamia 3500 BCE 3500 First states developed in Iraq 2400 BCE 2400 cuneiform writing developed , helped with trading Period: 2300 BCE to 500 BCE 2300 - 500s empire building in the Fertile Crescent 1792 BCE 1792 code of Hammurabi
