Which ancient civilization first developed a standardized product branding system with maker's marks stamped on pottery to guarantee quality and origin?

The ancient world had sophisticated product marketing and retail strategies that would be familiar to modern business people. From luxury goods traded along the Silk Road to specialized marketplaces in great empires, ancient civilizations pioneered many retail concepts we still use today. Test your knowledge about how ancient merchants promoted their products and built customer loyalty in the earliest days of commerce.

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Ancient Mesopotamians (Sumerians)
Ancient Greeks
Ancient Egyptians
Ancient Chinese (Zhou Dynasty)