Woodcut dated 1800 illustrating the new decimal units which became the legal norm in france on 4 november 1800, five years after the metric system was first introduced. In the captions, each one of these six new units is followed by the old french unit in brackets: the litre, the gram, the metre, the are (100 square metres), the franc, and the stère (1 cubic metre of wood). Date: 1800.
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