Which ancient civilization first used standardized symbols on merchandise to indicate a specific producer or workshop, creating an early form of product branding?

Long before modern corporate logos and brand identities, ancient civilizations mastered the art of symbolic representation. Rulers, cities, and merchant guilds all developed distinctive visual identities to signify power, origin, or quality. These ancient 'logos' were stamped on coins, emblazoned on buildings, and marked on traded goods. Test your knowledge about how ancient civilizations used visual symbols as early forms of branding and product identification.

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Ancient Egypt, with cartouche marks on pottery to indicate royal workshops
Ancient Rome, with maker's marks (sigillum) on products like pottery, bricks, and lamps
Ancient Greece, with city-state symbols on amphoras containing olive oil and wine
Mesopotamia, with cylinder seals as quality guarantees on traded goods