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1 Jan 1870 Jahr - Louis Pasteur develops vaccines for diseases.

Beschreibung:

Louis Pasteur, a physician, thought that illness was caused by microorganisms. He used this knowledge to develop vaccines that extended life expectancy by preventing a number of common diseases.

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Timeline of the I.R

Byanna
17 Feb 2024
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Datum:

1 Jan 1870 Jahr
Jetzt
~ 155 years ago

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