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19 dic 1862 año - Germ Theory

Descripción:

Alexander Yerson takes diseased sailor bubos and looks under microscope and puts it into guinea pig; it dies, finds cause

Añadido al timeline:

Diseases and Discoveries Related That Have Impacted Recorded Human History

ByTommy Chhoeum

14 dic 2018

1

0

926

fecha:

19 dic 1862 año

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~ 162 years ago

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