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On this day in 1795, the french National Convention officially introduced the metric system. Sixteen "mètres-étalons" were set in Paris so the population could familiarize with the new measure. Only two of them still exist today.
On this day in 1795, the french National Convention officially introduced the metric system. Sixteen "mètres-étalons" were set in Paris so the population could familiarize with the new measure. Only two of them still exist today.
