Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

Create a timeline

Public timelines

About & Feedback Acuerdo Privacidad FAQ

Cabinet Get premium

Donate

13 feb 1920 año - Crystal Radio invented -Beginning of wireless communications

Añadido al timeline:

comms

9 oct 2017

0

0

553

fecha:

13 feb 1920 año

Ahora mismo

~ 105 years ago

About & Feedback Acuerdo Privacidad FAQ

Cabinet Get premium

Donate

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

Secured with SSL