mar 7, 1673 - Germ Theory
Description:
The germ theory kicks off in 1673 when Anton Van Leeuwenhoek uses a simple microscope and becomes the first person to see these single celled organisms which he called "animalcules."(from https://explorable.com/discovery-of-bacteria)
Added to timeline:
Date:
mar 7, 1673
Now
~ 352 years ago