Which ancient civilization first implemented a standardized price-marking system where merchants were required by law to clearly display fixed prices for goods in marketplaces?

The ancient world had sophisticated commercial systems long before modern retail. From the bustling agoras of Greece to the complex trade networks of Mesopotamia, ancient civilizations pioneered retail concepts we still use today. Their innovations in pricing, distribution, and marketplace design laid the foundation for global commerce. Test your knowledge about how our ancestors approached the business of buying and selling in this challenging trivia question about ancient retail pricing strategies.

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Roman Empire under Emperor Diocletian's Edict on Maximum Prices (301 CE)
Egyptian New Kingdom under Pharaoh Thutmose III's market reforms
Mesopotamian city-states under Hammurabi's Code of commercial regulations
Han Dynasty China under Emperor Wu's standardized market system