24 sept. 1875 - telephone was invented
Description:
A telephone was used to contact other people in a place where they would have not been able to contact them before. For this to work both people required a telephone. It worked by someone saying something into mouthpiece which they travelled through to the other telephone and that person then heard what was said. helped for long distance communication.
was made by Graham Bell.
Ajouté au bande de temps:
Date:
Les images: