Which ancient civilization invented the first known form of product advertising by having merchants shout product announcements and jingles in public marketplaces?

While we often think of product innovation as a modern concept, ancient civilizations developed sophisticated marketing and product distribution systems. From the first branded goods in Mesopotamia to elaborate trade networks in Rome, these early societies laid the groundwork for modern commerce. This trivia question explores how ancient merchants advertised their wares before the age of digital marketing.

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Ancient Egyptians, who hired announcers to promote products in marketplaces around 2000 BCE
Ancient Romans, who created painted wall advertisements and posted notices about products around 100 BCE
Ancient Greeks, who incorporated product promotions into theatrical performances around 500 BCE
Ancient Chinese, who developed the first printed product advertisements on paper around 200 CE