Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

FAQ Ricevere il Premium

Create a timeline

Public timelines

About & Feedback Accordo Privatezza FAQ

Cabinet Get premium

Donate

4 lugl 1951 anni - Three types of polio virus isolated and identified

Aggiunto al nastro di tempo:

Timeline

7 dic 2018

0

0

303

Data:

4 lugl 1951 anni

Adesso

~ 74 years ago

About & Feedback Accordo Privatezza FAQ

Cabinet Get premium

Donate

The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.

Secured with SSL