Telegraph

Binary code

Morse code

ASCII code

Unicode

The Pony Express started.

The telegraph wire was invented.

Samuel Morse made a secret code.

The Pacific Telegraph Act was passed.

People used to send telegraphs through the Pony Express.

Samuel Morse sent the first telegraph in 1844.

Electrical pulses carried codes over telegraph wires.

The telegraph changed communication in the U.S.

It connected Nebraska and Nevada.

It stopped people from losing phone calls.

It helped people send messages quickly.

It let people talk by using a code.

Understand why the telegraph was important

Understand how the telegraph worked

Know when the first telegraph was sent

Know how to write a telegraph in code

telegraph

morse code

discrimination

strike

Alexander Graham Bell

Thomas Edison

Samuel Morse

Nikola Tesla

1837

1844

1851

1860

To transmit visual images

To send coded messages over long distances

To amplify sound

To record audio

It made international travel faster

It allowed for instant communication over long distances

It replaced the postal service

It was used to broadcast radio signals