Which ancient civilization pioneered the concept of 'brand sealing' - stamping products with distinctive maker's marks to guarantee quality and origin?

Before billboards and social media, ancient civilizations had their own sophisticated marketing strategies. From the bazaars of Mesopotamia to the forums of Rome, merchants developed ingenious techniques to promote their products and attract customers. This poll tests your knowledge about one of the most innovative ancient marketing practices that still influences how we advertise products today.

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Ancient Egyptians, who marked pottery and papyrus with royal cartouches to indicate palace-approved quality
Mesopotamians, who used cylinder seals on clay tablets to authenticate goods and their place of manufacture
Ancient Greeks, who stamped amphoras with city-state emblems to certify wine and olive oil purity
Romans, who required artisans to mark products with their personal insignia for tax collection purposes