33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
153792
13653
2
Create a timeline
Public Timelines
For educational institutions For teachers For students Cabinet
For educational institutions For teachers For students Open cabinet
FAQ Get premium
Create a timeline
Public timelines
FAQ
About & FeedbackTermsPrivacyFAQ
Support 24/7  
CabinetGet premium
Donate

feb 20, 1970 - Интенсивно велась подготовка учебного плана, стабильных программ и учебников природоведения.

Added to timeline:

лента

ByАнна Панфилова
15 Oct 2017
0
0
569

Date:

feb 20, 1970
Now
~ 55 years ago
About & FeedbackTermsPrivacyFAQ
Support 24/7  
CabinetGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL