Telegraph
telegraph, Morse code
Sped up dilvery
The Pony Express
The telegraph and newspapers.
The telephone followed the telegraph in terms of communication technology.
telegraph
Communication by telegraph has been outmoded by wireless communication methods.
Rapid communication
Telegraph
.....
The telegraph allowed faster communication across America and eventually the world.
telegraph
(telegraph)
Morse code.
Morse
It helped America to develop its economy and transportation.