Which ancient civilization first used branded clay seals as product packaging to guarantee authenticity and origin of goods in long-distance trade?

Before modern malls and e-commerce, ancient civilizations had sophisticated marketplaces with their own version of branded products and retail innovations. Merchants developed unique packaging, quality marks, and trading strategies that would be recognizable to today's marketing professionals. This poll explores how ancient societies approached product differentiation and consumer trust in their commercial exchanges.

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Mesopotamia (Ancient Sumerians)
Ancient Egypt
Indus Valley Civilization
Ancient China (Shang Dynasty)