III · Seals Across the Ages
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The longest-lived design in human history.

For 3,100 years the cylinder seal's form never changed — the most enduring visual system ever devised, from Early Dynastic Sumer to the fall of Assyria.

Catalogued Seals by Imperial Period
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0 1,000 2,000 3,000 4,000 5,000 2,340 4,720 3,080 3,560 1,870 EARLY DYNASTIC AKKADIAN NEO-SUMERIAN OLD BABYLONIAN NEO-ASSYRIAN 2900 – 2350 BCE 2350 – 2150 BCE 2150 – 2000 BCE 2000 – 1600 BCE 900 – 610 BCE
This is the Sumerian Cylinder Seal design system, applied by Curio Design — a design-style library for AI agents. Full Sumerian Cylinder Seal guide → designbycurio.com/learn/mesopotamian-sumerian-cylinder-seal