Which ancient civilization pioneered the use of 'maker's marks' (distinctive symbols) on pottery and goods as an early form of brand recognition?

Before digital billboards and social media campaigns, ancient civilizations had their own sophisticated methods of product marketing and brand recognition. From the bustling markets of Mesopotamia to the trade routes of the Roman Empire, merchants and artisans developed distinctive techniques to promote their goods. This poll explores how ancient civilizations handled product marketing and brand recognition in an era before modern advertising.

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Ancient Egypt - with artisans marking royal-commissioned items with specific hieroglyphic seals
Ancient Greece - where pottery workshops in Athens used distinctive symbols to identify their products in Mediterranean trade
Mesopotamia - where Babylonian merchants stamped clay tablets with unique merchant seals
Ancient China - where Han Dynasty craftsmen signed their work with imperial workshop symbols