Which ancient civilization invented the first known customer feedback system for marketplace products, using clay tablets for buyers to record their satisfaction with purchases?

The ancient world had sophisticated product development and supply chain systems long before modern business terminology existed. From the invention of standardized currency to the establishment of trade routes spanning continents, ancient civilizations pioneered many of the commercial concepts we still use today. Test your knowledge about how ancient societies handled product development, distribution, and customer satisfaction in their marketplaces and bazaars!

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Mesopotamians (Babylonians), who used cuneiform tablets to record customer complaints and merchant responses around 1750 BCE
Ancient Egyptians, who maintained papyrus scrolls of product quality ratings in the markets of Memphis around 2000 BCE
Phoenicians, who created a merchant guild system with customer satisfaction markings at their Mediterranean trading posts around 1200 BCE
Indus Valley civilization, which developed a token-based feedback system for their standardized weights and measures around 2500 BCE