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1 janv. 1955 - Polio Vaccine

Description:

Jonas Salk discovers the polio vaccine. Polio was a disease that killed, and permanently crippled people (often in childhood) around the world. Salk's discovery helped save countless lives and prevented huge amounts of suffering.

Ajouté au bande de temps:

Modern Times

ByClay Schubert
8 févr. 2023
1
0
538

Date:

1 janv. 1955
Maintenaint
~ Il y a 70 ans

Les images:

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