Which ancient civilization introduced the world's first standardized retail pricing system with fixed price tags, replacing the traditional haggling method in their marketplaces?

The ancient world was filled with sophisticated commercial systems that laid the foundation for modern retail. From the agoras of Greece to the forums of Rome and the bazaars of Mesopotamia, ancient civilizations developed complex market structures and trading practices. Test your knowledge about these early retail innovations that shaped commerce for millennia to come.

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Roman Empire under Emperor Diocletian's Edict on Maximum Prices (301 CE)
Babylonian merchants during King Hammurabi's reign (1792-1750 BCE)
Egyptian traders during the New Kingdom period (1550-1070 BCE)
Phoenician market administrators in major Mediterranean ports (900-600 BCE)