Which ancient civilization developed the earliest known formalized system of customer feedback for marketplace merchants, using clay tokens that customers would deposit in containers to rate their shopping experience?

Before digital reviews and star ratings, ancient civilizations had their own methods of providing and collecting customer feedback for merchants and artisans. This poll explores how commerce operated in antiquity and the surprising sophistication of early customer experience management. Test your knowledge about how ancient shoppers expressed satisfaction (or dissatisfaction) with their purchases and how vendors responded to maintain their reputations.

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Ancient Mesopotamia (specifically Babylonian merchants around 1750 BCE)
Ancient Egypt during the New Kingdom period (1550-1070 BCE)
Classical Athens during its Golden Age (5th century BCE)
Imperial Rome under Emperor Augustus (27 BCE-14 CE)