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aug 5, 1861 - Germ Theory

Description:

Louis carried out a series of experiments on milk and beer to prove that bacteria caused the milk and beer to go bad, and not the previous theory of spontaneous generation. He theorised that it was this bacteria that caused animals and ultimately humans to get sick.

Added to timeline:

22 Oct 2018
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Date:

aug 5, 1861
Now
~ 164 years ago