Which ancient civilization first used standardized seals on commercial goods to indicate the manufacturer and guarantee quality, essentially creating the world's first widespread use of 'brand logos'?

Before modern logos and corporate identities, ancient civilizations had their own sophisticated systems of visual symbolism to represent power, commerce, and craftsmanship. Artisans' marks, royal seals, and guild symbols functioned much like today's corporate logos - establishing authenticity, quality, and ownership. Test your knowledge about these earliest forms of 'corporate branding' that influenced the visual identity systems we use today.

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Mesopotamia (specifically the Sumerians around 3000 BCE)
Ancient Egypt during the Old Kingdom period
The Indus Valley Civilization
Ancient China during the Shang Dynasty