Which ancient civilization invented the world's first recorded retail branding system, using cylinder seals as 'trademarks' to identify merchandise origins?

Before modern shopping malls and e-commerce, ancient civilizations developed sophisticated retail systems that would influence commerce for millennia. From Mesopotamian marketplaces to Roman shopping complexes, retail operations have ancient roots. Test your knowledge about how our ancestors bought, sold, and branded their wares in the earliest retail environments of human history.

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Sumerians in Mesopotamia (3500 BCE)
Ancient Egyptians (3000 BCE)
Indus Valley Civilization (2600 BCE)
Ancient Chinese Shang Dynasty (1600 BCE)