Other forms: telegraphed; telegraphs; telegraphing
Forget about the internet! Before even the telephone was invented, the telegraph — a device used to communicate via electronic signals — was the main mode of communicating long distance. We've come a long way!
The telegraph is an outdated form of communication as far as sending long-distance messages goes. It uses an electric signal broken to create a code that then transmits over a wire and translates into a message. Alexander Graham Bell started tinkering with the telegraph and ended up inventing the first "harmonic telegraph" to transmit sound through a wire — which led to the birth of the modern telephone.