When were coins first used for retailing?
Could you elaborate on the historical timeline of when coins were first utilized for retail transactions? It's fascinating to think about the evolution of currency and how it's shaped our modern economic system. When did societies begin to adopt coins as a means of exchange for goods and services on a retail level? Were there any significant events or developments that catalyzed this transition? I'm eager to learn more about the origins of this fundamental aspect of our financial system.