Telephones in the 1800s

Innocenzo Manzetti

Oct 13, 1844

Innocenzo Manzetti Created the first speaking telegraph. It was a single port design in which required the speaker to alternately speak into and then listen through the same hole.

Charles Bourseul

May 12, 1854

In 1854, Charles Bourseul writes a manuscript about the principles of the telephone.

Philipp Reis

Sep 16, 1861

In 1861 the inventor Philipp Reis invents the first speech transmitting phone.

Bell transmitter

Apr 6, 1875

In April of 1875 Bell uses multipul vibrating steal reads in make break circuits to improve the telephone.

Thomas Edison

Nov 4, 1875

Thomas Edison experiments with acuoustic telegraphy. In November of 1875 he builds an electro dynamic reciever.

First sentence

Mar 10, 1876

The first sentence transmitted by bell is as follows:
" Mr. Watson come here! I want to see you!"

First long distance call

Jun 19, 1877

In 1877 Alexander Graham Bell made it possible for people to reach each other long distance.