Ancient Sumerians used cylinder seals for signatures
Ancient Sumerians invented cylinder seals, rolling engraved stones on wet clay to create unique signatures. This innovation authenticated documents, prevented fraud, and laid groundwork for early bureaucracy.
Around 3500 BCE, ancient Sumerians pioneered cylinder seals as a sophisticated form of signature. These small, engraved stones, rolled across wet clay, created unique, repeating patterns. This innovation authenticated documents and prevented fraud in early Mesopotamian city-states like Uruk and Ur.
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