That salt shaker on your table isn’t worth very much now, but ancient cultures used salt as a form of money, said Asher Rogovy, CIO of Magnifina, an SEC-registered investment advisor.

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“Ancient cultures used salt as a form of money. At the time, salt was highly valued for its ability to preserve food. Salt also has the crucial feature of being easy to divide. Etymologists connect the word ‘salary’ to European root words for salt, such as ‘sal’ or ‘sel’. It is also thought that salt’s history as a currency led to the expression “to be worth one’s salt”.”