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may 15, 1871 - 1871 Dimitri Mendeleyev
Description:
1871
Dimitri Mendeleyev, modificó su tabla periódica reduciéndola a sólo ocho columnas
Added to timeline:
2 Dec 2017
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LINEA DEL TIEMPO
Date:
may 15, 1871
Now
~ 153 years ago