Which ancient civilization first used branded pottery with distinctive maker's marks to establish product authenticity and build consumer loyalty?

Long before digital advertising and social media campaigns, ancient civilizations developed sophisticated marketing strategies to promote their products and establish their brands. From Phoenician merchants' distinct amphorae markings to Roman shopkeepers' elaborate signage, brand identity has ancient roots. This poll explores how the earliest civilizations marketed their goods and established consumer trust in the ancient marketplace.

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Phoenicians (1500-300 BCE), who marked their wine and olive oil amphorae with unique symbols representing specific merchant houses
Ancient Greeks (800-300 BCE), who stamped pottery with the artisan's signature and city of origin to guarantee quality and provenance
Romans (753 BCE-476 CE), who branded their pottery with the imperial seal to distinguish official goods from counterfeits
Mesopotamians (3500-500 BCE), who used cylinder seals on clay vessels to identify specific workshops and craftsmen