Which product innovation, developed around 3500 BCE in Mesopotamia, transformed ancient retail by creating the world's first branded, standardized goods for trade?

Before modern shopping malls and e-commerce, ancient civilizations had their own remarkable innovations in product development and retail. The earliest merchants faced unique challenges that required creative solutions, from preservation techniques to specialized packaging. This trivia explores one of history's earliest and most significant product innovations that revolutionized trade across multiple ancient civilizations and continues to influence commerce today.

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

Clay tablets with merchant seals (early product certificates)
Cylinder seals for authenticating clay containers
Papyrus scrolls with product inventories
Standardized bronze weights for measuring commodities