Which ancient civilization invented the first known branded products by stamping maker's marks on pottery and goods to indicate quality and origin?

Before modern billboards and digital marketing, ancient civilizations developed sophisticated methods to advertise their goods. From Roman wall paintings promoting local businesses to Chinese merchants using bells and chants to attract customers, marketing has ancient roots. This poll explores how ancient civilizations used early forms of 'brand identity' to distinguish their products in marketplaces that often spanned vast trade networks across multiple cultures and languages.

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Ancient Egyptians, who marked royal goods with pharaonic seals (3100-2686 BCE)
Mesopotamians, who used cylinder seals on clay tablets to authenticate goods (3500-3000 BCE)
Ancient Greeks, who marked amphorae with city-state symbols (800-700 BCE)
Ancient Romans, who stamped bricks and pottery with manufacturer insignias (100 BCE)