Which ancient marketplace innovation is considered the earliest example of retail personalization based on consumer demographics?

The ancient world had sophisticated retail and commerce systems that reveal fascinating consumer behaviors. From the bustling markets of Mesopotamia to Roman shopping districts, ancient civilizations developed complex commercial practices. This poll explores how archaeologists and historians use market research to understand ancient consumer preferences and shopping habits. Test your knowledge about how modern retail analysis techniques help us understand commerce from thousands of years ago!

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The Roman 'tabernae' system where shopkeepers kept clay tablets recording regular customers' preferences and purchase history
Egyptian market stalls with different sections based on social class, with vendors trained to recognize customer status by clothing
Greek agora merchants who employed 'customer heralds' to announce when wealthy regular patrons were approaching
Babylonian bazaar practices where merchants created personalized seal stamps for loyal customers to mark discounted items