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1 janv. 1796 - primera vacuna

Description:

Edward Jenner inventó la primera vacuna contra la viruela.

Ajouté au bande de temps:

EV3 ESPINOZA Meza David Antonio

ByDavid Espinosa
14 nov. 2017
0
0
516

Date:

1 janv. 1796
Maintenaint
~ Il y a 229 ans
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