Alexander Graham Bell and his invention: the telephone

The visionary man who invented the telephone, was Alexander Graham Bell . This built the first telephone in 1876, in the state of Massachusetts in the United States. This useful invention, consists of the transmission of sounds from a distance using electricity. Thus, as in 1876, develops the phone, with financial support from their in-laws. The system used is basically that we continue using. The transformation of sound, electrical impulses. That same year, Bell patented his invention. But the United States Congress, by performing an act of justice, officially recognized the contribution to the development of telephone made by Antonio Meucci. Meucci was Italian, who was born in 1808 in Florence. After various problems in their lives, with the Italian government at the time, moved to the United States. Meucci, would have invented a basic form of telephone, in 1854. Her need was quite simple. Joining in a direct manner, his office to the second floor, where her room was. This, because his wife suffered from rheumatism, so that he could not get off easily, the stairs of the house. Thus, she could easily communicate with her husband, against any need to be submitted.
Regardless of these technicalities, now almost universally recognized that whoever was Bell invented the telephone.