Which ancient civilization first implemented a standardized 'retail price' system where goods had fixed prices rather than being exclusively bartered or negotiated?

Before modern shopping malls and e-commerce, ancient civilizations created sophisticated retail systems that shaped commerce for millennia. These early marketplaces weren't just places to exchange goods—they were centers of innovation that introduced concepts we still use today. From standardized currency to customer loyalty programs, many retail innovations have surprisingly ancient origins. Test your knowledge about one of history's most significant retail innovations that forever changed how humans conducted commerce.

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

Ancient Rome with its 'Edictum de Pretiis Rerum Venalium' (Edict on Maximum Prices) under Emperor Diocletian
Ancient Egypt, where market inspectors called 'medjay' enforced standard prices in royal marketplaces
Mesopotamian Babylonians, who established fixed prices in the Code of Hammurabi for common goods
Ancient Greece, where the Agora featured stalls with set prices established by merchant guilds