Which ancient civilization first implemented a standardized product pricing system in their marketplaces, using official weight measurements to prevent merchant fraud?

In ancient civilizations, product development and retail experiences were more sophisticated than many realize. From the complex trade networks of Mesopotamia to the bustling marketplaces of Ancient Rome, early merchants developed innovative techniques to attract customers, establish brand identity, and create memorable retail experiences. This trivia question explores how ancient civilizations approached an important aspect of the retail customer journey that might seem surprisingly modern.

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Ancient Egypt under Pharaoh Thutmose III
The Phoenicians in their Mediterranean trading ports
The Indus Valley Civilization at Mohenjo-daro
The Zhou Dynasty in Ancient China