Which ancient civilization first developed the concept of 'retail zoning' - grouping similar merchants together in specific market areas to increase shopping efficiency?

Before modern shopping malls and e-commerce, ancient civilizations developed sophisticated retail systems that shaped commerce for millennia. From specialized market streets in Mesopotamia to complex trade networks in the Mediterranean, these early retail innovations laid the groundwork for today's global marketplace. This trivia question explores one of the most significant retail innovations from the ancient world that continues to influence modern merchandising practices.

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

Ancient Romans with their multi-story shopping complex called Trajan's Market
Ancient Greeks with their centralized 'agora' marketplace system
Ancient Babylonians with their specialized market streets in the city of Babylon
Ancient Egyptians with their regulated Nile-side commercial districts