29
/pt/
pt
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
575718
48673
2
Criar
Public Timelines
Biblioteca
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
1 jan 1952 ano - 1952: Jonas Salk developed the first Polio vaccine
Adicionado na linha do tempo:
21 jan 2018
0
0
279
health sci. medical discoveries
Data:
1 jan 1952 ano
Agora
~ 72 years ago
Imagens: