Two German inventors created their own electromagnetic telegraph in 1833.
There has been a significant amount of controversy over the years over whether Bell or Gray invented the phone.
His claims were always upheld in court, however.
His assistant, Alfred Vail, created a Morse code signaling alphabet that could be used to transmit messages electronically.
Starting in the 1800s, inventors like Francisco Salva Campillo and Alexander Graham Bell started trying to develop electrical telephones.