Which ancient civilization invented the world's first known retail receipt system, using clay tablets to record purchases and returns around 3000 BCE?

Before modern shopping malls and e-commerce, ancient civilizations pioneered sophisticated retail systems that laid the groundwork for today's commerce. From specialized merchant districts to standardized currency, these early innovations revolutionized how goods were traded. Test your knowledge about the fascinating retail practices that emerged in antiquity and discover how these ancient solutions to commerce challenges continue to influence modern retail concepts.

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Mesopotamian (Sumerian) merchants
Egyptian marketplace vendors
Indus Valley traders
Chinese Han Dynasty shopkeepers