33
/pt/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
3736594
342113
2
Create a timeline
Public Timelines
For educational institutions For teachers For students Cabinet
For educational institutions For teachers For students Open cabinet
FAQ
Create a timeline
Public timelines
FAQ
About & FeedbackAcordoPrivacidadeFAQ
Support 24/7  
CabinetGet premium
Donate

1 jan 1952 ano - A Vaccine For Polio Was Developed

Descrição:

Who: Jonas Salk

What: He Develop a vaccine for polio and help many kids get vaccinated

Why:I chose this because many people woulkd have died to this dangurerus virus

Adicionado na linha do tempo:

Heath Science

ByNathan Vong
10 fev 2020
0
0
293

Data:

1 jan 1952 ano
Agora
~ 73 years ago
About & FeedbackAcordoPrivacidadeFAQ
Support 24/7  
CabinetGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL