Which ancient civilization implemented the first known standardized 'retail branding' system with unique merchant seals that guaranteed product authenticity and allowed consumers to trace goods to specific producers?

Before digital transformation, ancient civilizations had their own revolutionary retail practices. From the bustling markets of Mesopotamia to the complex trade networks of Rome, ancient societies developed sophisticated commercial systems that laid the groundwork for modern retail concepts. This trivia explores how these early civilizations transformed their 'retail' experiences through innovation, organization, and adaptation to changing consumer demands.

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Mesopotamian merchants (3000-2000 BCE), who used cylinder seals as 'brand marks' on clay containers to identify their goods in long-distance trade
Ancient Egyptian traders (1500 BCE), who marked papyrus receipts with hieroglyphic cartouches representing specific market vendors
Greek agora sellers (500 BCE), who stamped amphora with distinctive symbols to indicate wine or olive oil origin and quality
Roman market guilds (200 CE), who implemented the 'sigillum mercator' system that required all goods to bear the mark of their authorized producer