Which ancient civilization pioneered the first known 'customer loyalty program' using clay tokens that customers could collect and redeem for discounts on future purchases?

While we often think of retail innovations as modern developments, ancient civilizations pioneered sophisticated marketplace systems that influence commerce to this day. From the bustling agoras of Greece to the complex trade networks of Mesopotamia, these early civilizations developed remarkably advanced methods for organizing commerce, maintaining customer loyalty, and managing retail spaces. Test your knowledge about these fascinating early retail innovations!

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Mesopotamian merchants in Babylon (circa 1800 BCE)
Roman shopkeepers in Pompeii (circa 100 CE)
Egyptian marketplace vendors in Alexandria (circa 300 BCE)
Chinese Han Dynasty merchants (circa 200 BCE)