Cylinder seals emerge in Middle Uruk administrationJan 1, 3500 BCELabels: Middle Uruk, Temple administrationUruk PeriodWHE UrukMet Essays
Uruk animal friezes become standard seal imageryJan 1, 3100 BCELabels: Uruk period, Animal friezesFitzwilliamMet Essays
Jemdet Nasr geometric styles expand drill-based motifsJan 1, 3100 BCELabels: Jemdet Nasr, Geometric motifsMet ObjectPrinceton Art
Seal imagery supports proto-cuneiform record keepingJan 1, 3000 BCELabels: Proto-cuneiform, Uruk administrationMet EssaysUruk Period
Early Dynastic “banquet” themes grow in popularityJan 1, 2600 BCELabels: Early Dynastic, Banquet scenesMet ObjectANU Archive
Early Dynastic III seals show mature Sumerian stylesJan 1, 2600 BCELabels: Early Dynastic, Sumerian styleMet ObjectMet Essays
Akkadian “contest scene” iconography becomes dominantJan 1, 2350 BCELabels: Akkadian period, Contest scenesMet ObjectBritish Museum
Hardstones and fine cutting signal Akkadian workshopsJan 1, 2300 BCELabels: Akkadian workshops, Hardstone sealsMet ObjectBritish Museum
Ur III “presentation scene” becomes a seal standardJan 1, 2050 BCELabels: Ur III, Presentation sceneWaltersBritish Museum Bib
Seal use and wearing evidenced by perforation wearJan 1, 2050 BCELabels: Seal wear, Perforated sealsFitzwilliamWalters
Large museum catalogues formalize Uruk–Ur III typologiesJan 1, 1982Labels: Museum catalogues, Dominique CollonBritish Museum
Digital imaging enables full 360-degree seal readingJan 1, 2010Labels: Digital imaging, 360-degree photographySpurlock