Which ancient civilization invented the first documented form of product endorsement, where royal seals were used on pottery to increase its market value around 3000 BCE?

Before celebrity Instagram posts and TV commercials, ancient civilizations had their own sophisticated marketing techniques. Royal endorsements, religious connections, and artisan stamps were powerful marketing tools that helped certain products dominate ancient markets. This poll explores how ancient merchants created brand recognition and consumer trust thousands of years before modern marketing concepts emerged.

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Mesopotamia (ancient Sumerians)
Ancient Egypt
Indus Valley Civilization
Ancient China (Xia Dynasty)