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9 ottob 1798 anni - Edward Jenner

Descrizione:

Smallpox vaccine created by using cowpox in 1796 (Cabral)

Aggiunto al nastro di tempo:

Timeline Research

ByTien Le
14 dic 2018
1
0
462

Data:

9 ottob 1798 anni
Adesso
~ 226 years ago
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