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jan 21, 1799 - 1799 Se deposita en los primeros archivos de Francia el primer prototipo del metro, formado por una regla de platino sin inscripciones ni marcas
Added to timeline:
Metrología
By
Erick Piña
12 Jan 2018
0
0
1622
Date:
jan 21, 1799
Now
~ 226 years ago
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