Which ancient civilization created what is widely considered the first documented branded product, using distinctive symbols pressed into clay bricks as a mark of quality and origin?

Before Amazon and Walmart, ancient civilizations had their own sophisticated commercial systems and recognizable brands. Merchants in Mesopotamia, Egypt, Rome, and beyond developed distinctive marks and symbols to differentiate their products and build consumer trust - establishing the earliest foundations of branding. This trivia question explores a fascinating example of ancient brand recognition that has been confirmed through archaeological evidence.

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Ancient Egypt (hieroglyphic seals on ceramic vessels)
Mesopotamia (specifically ancient Babylonia)
Indus Valley Civilization (merchant seals on trade goods)
Ancient Greece (amphora marks from specific city-states)