Which retail innovation, developed in Mesopotamia around 3000 BCE, revolutionized commerce by allowing merchants to track inventory and sales?

Before modern shopping malls and e-commerce, ancient civilizations developed sophisticated retail systems that shaped commerce for millennia. This poll explores a fascinating innovation in ancient retail operations that revolutionized how merchants conducted business and influenced consumer purchasing behavior. Test your knowledge about early retail technology that changed the ancient marketplace forever!

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Clay tablets with cuneiform writing for record-keeping
The abacus for calculating customer payments
Standardized gold coins with merchant stamps
Papyrus scrolls listing product availability