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8 Feb 1858 Jahr - Paul Louis Simond

Beschreibung:

French army physican
Working w/ pastuer
experimente with rats if fleas can transmit fleas to eachother.

Zugefügt zum Band der Zeit:

new disease

14 Dez 2018

1

0

558

Datum:

8 Feb 1858 Jahr

Jetzt

~ 167 years ago

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