Which ancient civilization first used standardized 'merchant seals' as proto-logos to mark authentic goods and build consumer trust in marketplaces?

Before modern logos and branding, ancient civilizations developed their own distinctive ways to mark and identify their goods in bustling marketplaces. From stamped pottery to unique merchant seals, these early 'brand identifiers' helped consumers recognize quality products and trusted merchants. Test your knowledge about how ancient civilizations pioneered concepts we now consider fundamental to modern branding and customer loyalty.

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Ancient Egyptians with their cartouche symbols (c. 3100 BCE)
Mesopotamians in ancient Sumer (c. 3500 BCE)
Chinese merchants during the Shang Dynasty (c. 1600 BCE)
Ancient Greeks with their amphora potter's marks (c. 700 BCE)