26 juin 1721 - Dr. Zabdiel Boylston of the Harvard University School of Medicine begins the first public inoculation campaign in order to slow the smallpox epidemic in Boston, giving a vaccine to his own son, and then to his slave and the slave's infant son
Ajouté au bande de temps:
Date:
26 juin 1721
Maintenaint
~ Il y a 304 ans