Which ancient civilization invented the first known form of retail credit, allowing customers to purchase goods with a promise of future payment?

Before modern shopping malls and e-commerce, ancient civilizations developed sophisticated retail systems that laid the groundwork for today's commerce. From the agoras of Greece to the forums of Rome and the bazaars of Mesopotamia, retail innovations shaped economic development and social interactions. Test your knowledge about these early retail innovations that transformed how humans exchanged goods and services thousands of years ago.

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Ancient Mesopotamia (Sumerians)
Ancient Egypt
Ancient Rome
Ancient China (Zhou Dynasty)