Which ancient civilization invented the first known retail price tag system, attaching clay tablets to merchandise with fixed prices to create a more standardized shopping experience?

The ancient world wasn't just about monuments and wars—it featured sophisticated commercial innovations that shaped modern retail. Ancient civilizations developed complex trading systems, specialized marketplaces, and even early forms of currency and credit. This trivia explores a fascinating aspect of ancient retail innovation that continues to influence modern customer experiences and commercial structures.

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Mesopotamia (Babylonian merchants)
Ancient Egypt (New Kingdom period)
Ancient Rome (during the Republic era)
Ancient China (Han Dynasty)