Learn about the history of the polio vaccine and who created the first one.
~~~
#EncyclopaediaBritannica
Inspiring curiosity and the joy of learning since 1768.
Web: britannica.com
Facebook: / britannica
Twitter: / britannica
Instagram: / britannica
Негізгі бет Did You Know: The History of the Polio Vaccine | Encyclopaedia Britannica
Пікірлер: 8