Which ancient civilization first used formal 'seals of quality' as a product positioning strategy to distinguish premium goods and guarantee their authenticity?

Before modern marketing departments and digital strategy, ancient civilizations had sophisticated approaches to product positioning. From luxurious goods traded along the Silk Road to positioning strategies of Mediterranean merchants, discover how ancient societies distinguished their wares in competitive marketplaces. This poll explores how ancient artisans and merchants differentiated their products through positioning strategies that would be familiar to modern marketers.

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Mesopotamia (specifically Babylonians), who stamped clay tablets with cylinder seals to certify quality goods around 2300 BCE
Ancient Egypt, where pharaonic cartouches were used to mark royal-approved products around 1500 BCE
Ancient Greece, where amphora producers stamped their vessels with distinctive marks to indicate wine quality around 700 BCE
Han Dynasty China, where government officials applied imperial stamps to standardized goods around 200 BCE