Which ancient civilization first developed a standardized logo system for merchants, where specific symbols on clay seals identified product authenticity and merchant reputation?

Before modern retail, ancient civilizations developed sophisticated commerce systems. Their product development approaches and customer service protocols laid foundations for today's retail practices. Test your knowledge about how these ancient societies innovated in commercial spaces and created customer experiences that would influence shopping habits for millennia to come. Some of their solutions to marketplace challenges were remarkably advanced for their time!

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Mesopotamian merchants (3000 BCE), who used cylinder seals with distinctive merchant marks to authenticate products and prevent counterfeiting
Ancient Egyptian traders (2500 BCE), who used cartouche-based symbols to designate royal-approved merchandise in marketplace stalls
Greek merchants (800 BCE), who implemented pottery stamps displaying their city-state affiliation and workshop identity
Roman shopkeepers (200 BCE), who created the 'signum mercatoris' system to brand their goods throughout the empire