Which ancient civilization pioneered the concept of 'brand seals' - unique symbols pressed into products to identify their maker and guarantee quality?

The marketplaces of ancient civilizations weren't just places of commerce - they were centers of innovation in retail strategy, customer experience, and brand recognition. From the agoras of Greece to the forums of Rome and the bazaars of Mesopotamia, ancient merchants pioneered retail concepts we still use today. Test your knowledge of these early retail pioneers and their sophisticated approaches to commerce that helped shape our modern shopping experiences.

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Mesopotamians, who used cylinder seals on clay containers to indicate the producer and contents
Ancient Egyptians, who marked papyrus scrolls with royal cartouches to indicate official products
Ancient Greeks, who stamped amphoras with city-state symbols to certify olive oil purity
Ancient Romans, who branded their high-quality pottery with maker's marks for premium pricing