Which ancient civilization pioneered the concept of 'customer loyalty programs' through clay tokens that regular customers could exchange for discounts on future purchases?

The ancient world developed sophisticated methods of customer engagement long before modern retail. From Roman market stalls to Egyptian bazaars, merchants understood the psychology of buyers and developed techniques to build loyalty. This trivia explores how ancient civilizations pioneered retail customer engagement strategies that still influence modern practices, revealing the timeless nature of commerce and human behavior in marketplace interactions.

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Mesopotamians (circa 3000 BCE)
Ancient Romans (circa 100 CE)
Han Dynasty China (circa 200 BCE)
Phoenicians (circa 1000 BCE)