the invention of the first telephone (1876)

The idea of the telephone (the speaking telegraph) was from Innocenzo Manzetti in 1844. However, the first actual model of the telephone used for speech- transmitting is invented by Alexander Graham Bell in 1876. Voice messages could finally be made! Through the telephone, Bell utters his first words to Mr Watson in the next room, "Mr. Watson, come here, I want to see you."