Which ancient civilization created the first documented customer loyalty program using clay tablets that functioned similarly to modern punch cards?

Before modern loyalty cards and points systems, ancient civilizations had their own methods of encouraging customer loyalty and repeat business. This trivia explores one of the earliest documented customer retention programs that influenced commerce for centuries. Test your knowledge about how ancient merchants created lasting relationships with their customers through innovative retention strategies that would be recognizable to modern product managers.

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Ancient Egyptians, who offered papyrus stamps redeemable for discounts on future grain purchases
Ancient Babylonians, who gave customers clay tokens that could be collected and exchanged for merchandise
Ancient Romans, who implemented the 'tessera' system offering repeat customers preferential seating at events
Ancient Chinese merchants of the Han Dynasty, who issued bamboo tally sticks for frequent silk road traders