jan 1, 1887 - The Hygienic Laboratory established (Later known as the National Institutes of Health)
Description:
"In 1887, a laboratory for the study of bacteria, the Hygienic Laboratory, was established within the Marine Hospital Service."Source:
https://en.wikipedia.org/wiki/National_Institutes_of_Health
Added to timeline:
Date:
jan 1, 1887
Now
~ 138 years ago