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anestesia (20 h 28 m, 1 jan 1842 ano – 17 h 7 m, 1 jan 1846 ano)

Descrição:

varios científicos descubren que siertas sustancias quimicas pueden utilizadas como anestesicos

Adicionado na linha do tempo:

mariana lopez giraldo

28 set 2018

0

0

932

Data:

20 h 28 m, 1 jan 1842 ano

17 h 7 m, 1 jan 1846 ano

~ 4 years

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