Which ancient civilization invented the world's first standardized retail pricing system with fixed price tags to eliminate haggling in their marketplaces around 2000 BCE?

Long before modern shopping malls and e-commerce, ancient civilizations created sophisticated marketplace systems that revolutionized how goods were bought and sold. These early retail innovations established commercial practices that would influence trade for millennia to come. Test your knowledge about how these ancient societies approached retail and commercial innovation!

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Ancient Egyptians, who used papyrus price labels in their Royal Marketplaces
Mesopotamian Sumerians, who used clay tablets with cuneiform pricing at urban bazaars
Indus Valley merchants, who implemented stone token pricing in their grid-planned market streets
Minoan traders, who used painted shell price markers in their harbor marketplaces