Which ancient civilization first implemented a standardized retail pricing system with fixed, clearly marked prices instead of the traditional haggling method?

Before modern retail technology, ancient civilizations developed sophisticated systems for commerce and trade. Their innovations laid the groundwork for many concepts we still use today in retail management, supply chains, and marketplace design. Test your knowledge about how these ancient societies handled their commercial challenges and created lasting retail solutions that influenced global trade for millennia.

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Roman Empire, with their 'Pretium Justum' (just price) system in urban marketplaces
Ancient Egypt, with their standardized grain valuation system under Pharaoh Ramesses II
Babylonian merchants under King Hammurabi's price control regulations
Chinese Han Dynasty's imperial marketplace system with government-issued price tablets