Which ancient civilization created the world's first documented product 'brand' with pottery stamps that guaranteed quality and origin, establishing unprecedented consumer loyalty around 3000 BCE?

Long before modern retail analytics and e-commerce, ancient civilizations developed sophisticated systems of commerce and brand recognition. Products from certain regions or makers were highly sought after, creating what we might recognize as the first instances of brand loyalty. This poll explores one of history's earliest examples of product branding and how ancient merchants created lasting commercial legacies that influenced trade routes for centuries.

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Mesopotamia (distinctive cylinder seals marked products from specific workshops)
Egypt (pharaonic cartouches indicated royal-approved products)
Indus Valley (standardized weights and seals differentiated merchant goods)
Ancient China (Zhou Dynasty craftsmen marks on bronze vessels)