Which ancient civilization invented the first known retail loyalty program, where merchants gave regular customers clay tokens that could be exchanged for discounts on future purchases?

Long before modern retail, ancient civilizations developed sophisticated commercial systems and innovative products that shaped early economies. Their marketplaces weren't just places of trade but centers of cultural exchange and technological advancement. Some of these ancient retail innovations were so effective that their influence can still be seen in today's commerce. Test your knowledge about these remarkable early retail developments!

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Ancient Egypt
Mesopotamia (Babylonians)
Ancient Rome
Han Dynasty China