33
/ru/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
3577460
326403
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 & FeedbackСоглашениеПриватностьFAQ
Support 24/7  
CabinetGet premium
Donate

1 окт 1955 г. - Polio Vaccine

Описание:

In 1955, the development of the polio vaccine by Jonas Salk led to widespread immunization against the disease ("How Mandatory Vaccination Fueled the Anti-Vaxxer Movement")

Добавлено на ленту времени:

History of Anti-Vaxxers

Byo
9 дек 2019
0
0
315

Дата:

1 окт 1955 г.
Сейчас
~ 70 г назад
About & FeedbackСоглашениеПриватностьFAQ
Support 24/7  
CabinetGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL