Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

FAQ Ricevere il Premium

Create a timeline

Public timelines

About & Feedback Accordo Privatezza FAQ

Cabinet Get premium

Donate

1 gen 1895 anni - 1895 - The first hearing aid, or "akouphone" was invented.

Aggiunto al nastro di tempo:

Otto Hahn

ByRobbie Winfield

12 nov 2019

1

0

407

Data:

1 gen 1895 anni

Adesso

~ 130 years ago

About & Feedback Accordo Privatezza FAQ

Cabinet Get premium

Donate

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

Secured with SSL