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descubren la primera vacuna (2 janv. 1796 – 28 juin 1796)

Description:

la viruela era un gran problema por eso se vieron necesario encontrar una cura

Ajouté au bande de temps:

danna sofia campiño

25 sept. 2018

1

0

824

Date:

2 janv. 1796

28 juin 1796

~ 5 months and 28 days

Les images:

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