Which ancient civilization created the first documented customer loyalty program using clay tokens that shoppers could collect and later exchange for discounts?

Before modern retail loyalty cards and point systems, ancient civilizations had their own methods of encouraging repeat business and customer loyalty. These early 'loyalty programs' were sophisticated for their time and reflected the economic systems of these advanced societies. Test your knowledge about how ancient merchants kept their customers coming back!

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Ancient Egypt, where temple merchants issued papyrus loyalty scrolls around 1300 BCE
Mesopotamia, where Babylonian merchants used 'shekel-back' clay tokens around 1700 BCE
Ancient Greece, where Athenian agora vendors distributed loyalty ostraka (pottery shards) in 500 BCE
Han Dynasty China, where silk road merchants created the 'return customer jade chip' system in 100 BCE