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1 janv. 1854 - Pettenkofer

Description:

Was unconvinced of the germ theory. So he drank a glass of water with cholera in it and nothing happened to him.

Ajouté au bande de temps:

Marissa Milne

ByMarissa Milne

8 oct. 2017

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Date:

1 janv. 1854

Maintenaint

~ Il y a 171 ans

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