Alexander Graham Bell, son of Eliza Grace Symonds and Alexander Melville Bell, was born on 3 March 1847 in Edinburgh (Scotland). His mother was deaf since adolescence, and his father was an expert on hearing loss and hearing instructor. The family was traditionally known for training people with hearing disabilities and work with the fix. Alexander was the middle child of the three children.When Alexander Graham Bell had approximately 14 years, he and his brothers built a replica of the fonador device, which contained palate, teeth, lips and vocal cords.Later, he entered the University of Edinburgh. Later he studied at the University of London and Würzburg (Germany). Worked as an Assistant to his father in London, when his brothers died, victims of tuberculosis. Fearing the disease, his father decided to leave England with his family in 1870. The chosen destination was the city of Ontario, Canada. Alexander Graham Bell was 23 years.A year later, in 1871, Alexander Graham Bell moved to the United States of America. In 1872, in the city of Boston, Massachusetts Graham Bell opened a school for students with hearing difficulties. Used the pronunciation method developed by his father in his lectures to the deaf, called "visible speech", in which are used the lips, the tongue and the throat in the articulation of the sound.In 1873, Graham Bell teaching Vocal Physiology at Boston University. It was then that started their research on how to use electricity in the transmission of sounds, ideas that came developing since the age of 18 years. The following year, while working on a multiple Telegraph, developed the basic ideas of what would be the phone.On the day 14 February 1876, handed the patent application of his invention, the telephone, the Office responsible for patents. That same year he presented his invention at an exhibition in Philadelphia, where it was released to the world. On 11 July 1877, Graham Bell married Mabel, former student at his school for the deaf (deaf was to 5 years). In 1879, after closing the recently released American Bell Telephone Company, founded a laboratory in Canada, where he continued his experiments.Alexander Graham Bell, in addition to invent (and patent) the phone, had on its behalf more 17 patents, and other 12:00 pm set with some employees. In 1898, he was appointed Chairman of the National Geographic Society. Died at the age of 75 years, on August 2, 1922 in the town of Beinn Bhreagh, in Canada.
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