II Letters from the Sargonic Period Early third-millennium attempts to create larger political units in southern Mesopotamia left little trace in the historical record. A larger polity may have existed farther north, centered on the city of Kish, but very little in the way of written documentation has survived from the area. Around 2330 BCE a king of the Sumerian city of Uruk by the name of Lugalzagesi managed to take control of most of the south, but his hegemony was short-lived;