Question

When was first S.I.unit made?​

Answer 1

Answer:

"1960

The International System of Units, universally abbreviated SI (from the French Le Système International d'Unités), is the modern metric system of measurement. The SI was established in 1960 by the 11th General Conference on Weights and Measures (CGPM, Conférence Générale des Poids et Mesures)."

Answer 2

First S.I. Unit was made In 1960 by 11th general conference on Weights and Measures.
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