Which ancient civilization is credited with creating the first standardized merchant 'logo system' using cylinder seals to mark ownership and authenticity of goods?

Before modern marketing strategies, ancient civilizations had their own sophisticated methods of brand recognition and commerce. From distinctive pottery marks in ancient Greece to standardized coinage in Rome and unique seal impressions in Mesopotamia, these early 'logos' helped merchants establish trust and recognition. Test your knowledge about how ancient civilizations used visual identities in their marketplaces and trading systems!

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Mesopotamia (particularly the Sumerians, circa 3500 BCE)
Ancient Egypt (circa 3100 BCE)
Indus Valley Civilization (circa 2600 BCE)
Ancient China's Shang Dynasty (circa 1600 BCE)