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21 янв 1799 г. - 1799 Se deposita en los primeros archivos de Francia el primer prototipo del metro, formado por una regla de platino sin inscripciones ni marcas
Добавлено на ленту времени:
Metrología
By
Erick Piña
12 янв 2018
0
0
1408
Дата:
21 янв 1799 г.
Сейчас
~ 225 г назад
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