Which innovative product marketing technique did Ancient Egyptian merchants use to distinguish their goods and build consumer trust in marketplaces around 3000 BCE?

Before digital billboards and social media campaigns, ancient civilizations had their own sophisticated methods of product marketing. From Mesopotamian clay tablets advertising beer to Roman wall paintings promoting gladiatorial events, marketing has deep historical roots. This trivia question explores how ancient Egyptian merchants created product awareness and built their brand identities in a world without modern technology.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Cylinder seals stamped on products to indicate origin and quality, essentially creating the world's first product branding system
Papyrus scrolls with illustrated product catalogs distributed to wealthy households by messenger birds
Trained performers who would demonstrate product uses in public squares while reciting poetic product claims
Seasonal product festivals where merchants would offer samples and early versions of loyalty tokens carved from stone