1. In the past, people in England used to pay their rent in eels
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iStock 2. Knives and spades were an important means of exchange in the past.
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3. The term salary comes from the fact that salt used to be a form of "money."
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In the Solomon Islands in the 6th century AD, massive chunks of limestone were used to exchange. Called "Rai stones", these alternatives to money.
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Wikimedia Commons 5. Sperm whale teeth have also used as a form of currency once upon a time
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iStock 6. Animal pelts have commonly been used as a means of exchange in the past
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More in the article.
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