Morse Code
It was used as communication at first, but was then used as a secret language in war.
It is a noun which can be used as an adjective: a telegraph pole.
What is the name of our distinguished animal put on the wires of the telegraph?
The telegraph was used in World War 1 to send orders from one location to another. During WWI Britain's telegraph were uninterrupted.
Bell was trying to improve the telegraph when he invented the telephone. They used the telegraph to communicate across the ocean.
Samuel Morse invented the telegraph and the code that the telegraph used (Morse code).
telegraph
Ghana
Most telegraph transmitters are keyboard-operated, so one with a typewriter keyboard would simply be a telegraph transmitter.
It help because there was no other phone and they had to use a telegraph to commuticate
Life before the telegraph was a different way than sending messages with the telegraph. People used letters to send messages.