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How Pirates Of The Caribbean Hijacked America's Metric System

This 1793 grave is an early version of the kilogram. It is possible this object, now owned by the National Institute of Standards and Technology museum, was once pirate treasure. (NIST Museum)
This 1793 grave is an early version of the kilogram. It is possible this object, now owned by the National Institute of Standards and Technology museum, was once pirate treasure. (NIST Museum)

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