Even if you entirely eschew the concept of money, we'll bet you'd be hard pressed not to trade in some form of currency. Learn how everything from cows to cacao beans to tiny shells from Maldives have served as currency at some time or another.
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Selects: How Narcolepsy Works
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Rope, yeah ROPE!
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Short Stuff: Did a shipwreck double the size of the United States?
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