Which ancient civilization first implemented a widespread system of pottery maker's marks that functioned similarly to modern trademarks?

Before modern logos and slogans, merchants and artisans throughout history developed unique ways to identify their products. From medieval guild marks to early corporate identities, these historical branding elements helped establish trust, quality, and recognition. This trivia question explores how product identification evolved in the pre-modern era, highlighting an important milestone in the development of brand identity concepts we still use today.

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Ancient Rome, where pottery was marked with the manufacturer's name and region of origin
Mesopotamia, where clay tablets included the seal of the craftsman who created the vessel
Ancient Egypt, where hieroglyphic symbols identified royal workshop productions
Ancient China, where pottery marks indicated the dynasty and specific imperial workshop