Mesopotamia By Anna Tomlinson 3500 BCE Development of city-states http://cdaworldhistory.wikidot.com/city-states-in-mesopotamia 3500 BCE The 1000 years development of writing which will be knownas cuneiform script https://www.ancient.eu/cuneiform/ Period: 3500 BCE to 1100 BCE Ancient Mesopotamia 2300 BCE First Empire in World History Ruled by King Sargon of Akkad https://en.wikipedia.org/wiki/Akkadian_Empire 2100 BCE Empire Ur becomes the center of most powerful Mesopotamia https://en.wikipedia.org/wiki/Third_Dynasty_of_Ur 2100 BCE The decline of the Sumerians and the arrival of the Amorites http://www.historyfiles.co.uk/KingListsMiddEast/MesopotamiaAmorites.htm 1749 BCE 1792-1749 King Hammurabi of Babylon famous for creating Code of Law http://www.history.com/topics/ancient-history/hammurabi 1530 BCE Kassites conquer and rule Babylonia for 400 years https://www.ancient.eu/kassite/