Which ancient civilization pioneered the concept of 'brand seals' as a form of product authentication and customer trust building in retail?

The marketplaces of ancient civilizations were sophisticated centers of commerce that employed surprisingly modern retail strategies. From brand ambassadors in Roman markets to early customer experience innovations in Mesopotamian bazaars, these civilizations laid the groundwork for many retail concepts we still use today. Test your knowledge about how ancient civilizations handled their retail customer experience and brand strategies!

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Mesopotamians, who used cylinder seals to mark authentic goods from specific merchants as early as 3500 BCE
Ancient Egyptians, who used hieroglyphic cartouches to designate royal-approved merchandise in 2000 BCE
Greeks, who implemented pottery maker's marks as the first brand logos around 700 BCE
Chinese Han Dynasty merchants, who created silk stamps for authentic goods around 200 BCE