Uruk begins rapid urban growthJan 1, 4000 BCELabels: Uruk city, Southern MesopotamiaUruk PeriodWorldHistory
Eanna precinct becomes major institutional hubJan 1, 3500 BCELabels: Eanna precinct, Inanna cultUruk PeriodProto cuneiform
Counting tokens and sealed bullae support accountingJan 1, 3400 BCELabels: Clay tokens, BullaeProto cuneiformMet Museum
Uruk IV proto-cuneiform begins at EannaJan 1, 3350 BCELabels: Proto-cuneiform, Eanna precinctCDLI PeriodsProto cuneiform
Numerical tablets emerge for institutional talliesJan 1, 3300 BCELabels: Numerical tabletsProto cuneiformUruk Period
Ration lists formalize redistribution practicesJan 1, 3300 BCELabels: Ration lists, Temple economyProto cuneiformMet Museum
Impressed wedges and stylus speed up recordkeepingJan 1, 3250 BCELabels: Stylus marks, Cuneiform wedgesMet MuseumProto cuneiform
Administrative seals reinforce authority and controlJan 1, 3250 BCELabels: Cylinder seals, Administrative sealsMet MuseumUruk Period
Uruk III expands and reforms written administrationJan 1, 3200 BCELabels: Uruk III, Proto-writingCDLI PeriodsProto cuneiform
Eanna building changes accompany wider shiftsJan 1, 3100 BCELabels: Eanna architecture, Institutional changeUruk PeriodProto cuneiform
Jemdet Nasr era carries proto-writing into new contextsJan 1, 3100 BCELabels: Jemdet Nasr, Administrative tabletsJemdet NasrArt Mesopotamia
Early Dynastic cuneiform supersedes proto-cuneiformJan 1, 2900 BCELabels: Early Dynastic, CuneiformProto cuneiformSumer Chronology