Which ancient civilization first used 'maker's marks' (symbols stamped on products) as a form of brand recognition and quality assurance?

Before modern logos and billboards, ancient civilizations had their own methods of brand recognition. Merchants, artisans, and traders developed unique identifiers to distinguish their products in bustling marketplaces from Mesopotamia to Rome. These early forms of branding helped establish trust, quality, and origin for products traded across vast empires and trading networks. Test your knowledge about how ancient civilizations handled what we now call 'brand recognition'!

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Mesopotamian potters (c. 3500 BCE)
Egyptian stone masons (c. 2500 BCE)
Chinese silk merchants (c. 1500 BCE)
Greek olive oil producers (c. 800 BCE)