Which ancient civilization first introduced standardized retail pricing (marked prices on goods) rather than the traditional haggling method in their marketplaces?

The ancient world had sophisticated retail systems long before modern commerce. From the bustling agoras of Greece to the complex trade networks of Mesopotamia, ancient civilizations developed innovative retail practices that influenced commerce for millennia. This poll explores an intriguing aspect of ancient retail history that shaped how merchants and customers interacted in these early marketplaces.

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Ancient Rome during the reign of Emperor Augustus
Ancient Egypt under Pharaoh Ramses II
Babylonian Empire under King Hammurabi
Han Dynasty China under Emperor Wu