Which ancient civilization invented the first known retail pricing labels, attaching clay tags to goods with standardized values?

Before modern shopping malls and e-commerce, ancient civilizations developed sophisticated retail strategies and technologies that laid the foundation for today's commercial practices. From specialized marketplaces to advanced record-keeping systems, these early retail innovations revolutionized trade and commerce. Test your knowledge about retail technology and strategies that emerged in the ancient world!

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Mesopotamians, who used cuneiform-inscribed clay tablets attached to merchandise in the markets of Ur around 2100 BCE
Egyptians, who developed papyrus price tags for goods in the markets near the pyramids during the Old Kingdom period
Romans, who introduced bronze price markers in their forum marketplaces during the early Republic
Chinese Han Dynasty merchants, who pioneered silk-printed price cards for luxury goods along the Silk Road