Which ancient civilization invented the first known customer loyalty program using clay tokens that merchants gave to repeat customers?

Before modern retail and e-commerce, ancient civilizations created sophisticated marketplace systems with their own customer loyalty strategies. From Mesopotamian clay tokens to Egyptian market practices, these early commercial innovations laid the groundwork for today's retail concepts. Test your knowledge about how ancient merchants kept their customers coming back thousands of years ago!

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Mesopotamian merchants (circa 3000 BCE), who gave clay tokens that could be collected and exchanged for discounts on future purchases
Ancient Romans (circa 100 CE), who introduced wooden tally sticks that patrons could present at bathhouses for preferential treatment
Ancient Chinese traders (circa 1000 BCE), who created bronze medallions for frequent customers of silk and spice merchants
Egyptian marketplace vendors (circa 1500 BCE), who offered papyrus scrolls recording purchase history for royal household shoppers