Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

FAQ Receber premium

Create a timeline

Public timelines

About & Feedback Acordo Privacidade FAQ

Cabinet Get premium

Donate

Исследование водных объектов (15 abr 1919 ano – 15 abr 1941 ano)

Descrição:

Количество гидропостов на реках и озерах республики выросло до 170. На них проводились наблюдения за уровнем воды и гидро- логическим режимом.

Adicionado na linha do tempo:

География

11 nov 2019

0

0

427

Data:

15 abr 1919 ano

15 abr 1941 ano

~ 22 years

About & Feedback Acordo Privacidade FAQ

Cabinet Get premium

Donate

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

Secured with SSL