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Anestecia (oct 27, 1842 – feb 6, 1846)

Description:

varioas cientificos descubren que ciertas sustancias quimicas pueden ser utilizadas como anestecia

Added to timeline:

Sara isabel alzate

19 Sep 2018

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805

Date:

oct 27, 1842

feb 6, 1846

~ 3 years and 3 months

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