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11 ore 48 min, 14 giug 1796 anni - El gran avance de Jenner

Descrizione:

Edward Jenner (1749-1823), médico inglés, aprendió de una lechera que se creía protegida de la viruela porque había contraído viruela vacuna Jenner decidió probar la hipótesis.

Aggiunto al nastro di tempo:

Vacunación

ByReDCid UvU
16 nov 2017
0
0
417

Data:

11 ore 48 min, 14 giug 1796 anni
Adesso
~ 229 years ago

Immagini:

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