Which ancient civilization first implemented a standardized retail pricing system with fixed prices displayed on goods rather than requiring haggling for every transaction?

Before shopping malls and e-commerce, ancient civilizations created sophisticated retail environments that influenced commerce for millennia. Their innovative approaches to merchandising, currency, and customer experience established foundations for modern retail strategies. Test your knowledge about how our ancestors revolutionized the retail experience through architectural design, trade regulations, and merchandising techniques that would be considered cutting-edge even by today's standards.

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Ancient Rome with their 'pretium iustum' (just price) policy established in marketplace stalls during the 2nd century CE
Ancient Egypt where pharaohs established royal price controls for marketplace vendors during the New Kingdom period
Mesopotamian merchants who used cuneiform tablets to display standardized prices in the markets of Babylon
Ancient Greece where the Agora marketplace in Athens featured price-marked goods following Solon's reforms