Aug 1, 2020Before this, semaphore and flag signalling were used for shorter range telegraphic communications. Even earlier, mail route and messenger systems such as those How did people communicate long distances before the telegraph?How did the invention of the telegraph change communication and Before the phone and mail was invented how did people - QuoraWhen was the first human communication in the form of telegraph More results from www.quora.com
Precursors. Prior to the electric telegraph, visual systems were used, including beacons, smoke signals, flag semaphore, and optical telegraphs for visual signals to communicate over distances of land. An auditory predecessor was West African talking drums.
Prior to the electric telegraph, visual systems were used, including beacons, smoke signals, flag semaphore, and optical telegraphs for visual signals to communicate over distances of land. An auditory predecessor was West African talking drums.
Prior to the electric telegraph, visual systems were used, including beacons, smoke signals, flag semaphore, and optical telegraphs for visual signals to communicate over distances of land. An auditory predecessor was West African talking drums.
Prior to the electric telegraph, visual systems were used, including beacons, smoke signals, flag semaphore, and optical telegraphs for visual signals to communicate over distances of land. An auditory predecessor was West African talking drums.