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jan 1, 1870 - Louis Pasteur develops vaccines for diseases.

Description:

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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305

Date:

jan 1, 1870
Now
~ 155 years ago

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