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Anestecia (1 jul 1842 ano – 1 nov 1846 ano)

Descrição:

Varios científicos descubre que ciertas sustancias químicas pueden ser utilizadas como anestésico

Adicionado na linha do tempo:

Nicol Dayana Rincon Guerrero

ByOctavo
25 set 2018
1
0
717

Data:

1 jul 1842 ano
1 nov 1846 ano
~ 4 years and 4 months
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