Which ancient civilization created the world's first known purpose-built shopping complex with standardized storefronts, covered walkways, and organized retail zones?

Before modern shopping malls and e-commerce, ancient civilizations pioneered sophisticated retail systems that shaped commerce for millennia. From Mesopotamian bazaars to Roman shopping complexes, retail history extends back thousands of years. This trivia question explores one of the most innovative retail developments from the ancient world that revolutionized how people shopped and influenced retail location strategy for centuries to come.

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Ancient Rome (Trajan's Market, 110 CE)
Ancient Egypt (Nile Marketplace of Akhenaten, 1350 BCE)
Mesopotamian Sumerians (Great Market of Ur, 2100 BCE)
Ancient Greece (Athenian Agora Complex, 500 BCE)