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

1 ene 1913 año - 1913 Coolidge Tubes are created, which can create x-rays using vacuum tubes

Añadido al timeline:

X-Rays

4 oct 2017

0

0

514

fecha:

1 ene 1913 año

Ahora mismo

~ 112 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