Which of these best expresses why the invention of the telegraph is considered a revolutionary step in media development? The telegraph was the starting point for the science behind modern communication devices such as the telephone and fax machine. The telegraph was the first machine used to broadcast news using sound. The telegraph was the first device that allowed information to travel over a distance without being physically transported by a person. The first message sent on the telegraph was transatlantic, proving that a message could be sent over a long distance without a human being needed to transport it.