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1 h 23 m, 1 sept 1847 año - Ignaz Semmelwis Discovery

Descripción:

-Discovered that hand washing reduces infection

Añadido al timeline:

Disease Timeline

ByKim Nguyen
14 dic 2018

fecha:

1 h 23 m, 1 sept 1847 año
Ahora mismo
~ 176 years ago
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