Which ancient civilization invented the first known form of 'brand loyalty' through government-issued quality seals for exported goods that guaranteed authenticity and quality?

Before modern marketing techniques, ancient civilizations developed sophisticated methods to distinguish their products in marketplaces. From maker's marks on pottery to distinctive packaging for exports, early merchants understood the power of product differentiation. This trivia explores how ancient civilizations pioneered retail innovations that still influence modern branding and customer loyalty concepts.

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Phoenicians with their 'purple mark' certifications for exported textiles
Romans with their 'Pax Romana' stamped pottery and wine amphorae
Mesopotamians with their cylinder seal impressions on clay tablets for commercial transactions
Egyptians with their royal cartouches on exported papyrus and goods