Which ancient civilization established the world's first known permanent retail marketplace, featuring standardized weights and measures for fair trade?

Before modern malls and online shopping, ancient civilizations developed sophisticated markets and trading systems. From the bustling bazaars of Mesopotamia to the complex trade networks of the Phoenicians, retail experiences have shaped human interaction for millennia. Test your knowledge about how our ancestors shopped, traded, and developed the earliest retail experiences that would eventually evolve into today's global commerce systems.

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Sumerians in Mesopotamia (circa 3000 BCE)
Ancient Egyptians along the Nile (circa 2500 BCE)
Indus Valley civilization (circa 2600 BCE)
Ancient Chinese in the Yellow River valley (circa 1800 BCE)