It is widely known that the units of length and mass used in science all over the world and in civic and commercial applications in most of the world originated in the First French Republic in the aftermath of the French Revolution. Less well known is the fact that reform of weights and measures was an issue considered by the governments of Great Britain and the new United States at roughly the same time. These endeavors were not entirely independent, although the results in the three nations were quite different. The proposals in all three nations will be described, including the evolution of those in France up to the deposit of the prototype meter and kilogram in 1799.

Reform of weights and measures in late 18<sup>th</sup>-century France, Great Britain, and United States

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Reform of weights and measures in late 18th-century France, Great Britain, and United States

Reform of weights and measures in late 18^th-century France, Great Britain, and United States