Which ancient civilization first implemented a customer feedback system in marketplaces using clay tablets that influenced modern customer experience practices?

Ancient civilizations developed sophisticated retail systems that laid the foundations for modern customer experience principles. From Mesopotamian marketplace layouts to Egyptian brand identifications, these early societies understood the importance of creating distinctive shopping experiences. This poll explores how ancient retailers pioneered customer experience techniques that continue to influence modern retail strategy and consumer engagement.

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Mesopotamians (Babylonians), who required merchants to record customer complaints on clay tablets that were reviewed by marketplace officials
Ancient Egyptians, who used papyrus scrolls at market exits for customers to record their satisfaction with purchases
Romans, who placed voting urns at forum markets where customers could deposit colored stones to rate merchant service
Ancient Chinese, who implemented the first 'five-star' rating system using bamboo tokens at Song Dynasty marketplaces