1 gen 1887 anni - The Hygienic Laboratory established (Later known as the National Institutes of Health)
Descrizione:
"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
Aggiunto al nastro di tempo:
Data:
1 gen 1887 anni
Adesso
~ 138 years ago