Which ancient civilization is credited with creating the first known merchant loyalty program using clay tokens that customers could collect and exchange for goods?

Before modern retail loyalty cards and point systems, ancient civilizations had their own methods of encouraging customer retention and repeat business. These early 'loyalty programs' helped merchants build relationships with customers and establish trade networks across empires. Test your knowledge about how ancient merchants kept their customers coming back!

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Mesopotamians (circa 3000 BCE), who gave regular customers clay tokens that could be redeemed for discounts on future purchases
Ancient Egyptians, who offered papyrus 'reward scrolls' to noble customers who frequently purchased luxury items
Ancient Romans, who introduced the 'fidelis tabella' (loyalty tablet) system for patricians at specialized markets
Ancient Chinese merchants during the Han Dynasty, who provided repeat customers with bamboo tally sticks for accumulated purchases