33
/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
23547
2132
2

jan 1, 1796 - Edward Jenner

Description:

created vaccination by inoculating a milk maid with cowpox virus

Added to timeline:

7 Sep 2017
0
0
679

Date:

jan 1, 1796
Now
~ 229 years ago