A Short History of Commerce

Monetary systems aren't always based on coins. Many different forms of exchange can be in use simultaneously. Take, for example, the real world around the year 1200. Currency included the regulated gold and silver coins of Byzantium and the Middle East, the licensed mints of England, the paper currency of China, the cowrie shells of Oceania, and the carved stones of Aztec lands. These were only a few forms money could take.

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