Alexander Graham Bell was a Scottish inventor. He was born in Edinburgh in 1847 and died in 1922. He was educated at Edinburgh and in Germany, and settled in Canada in 1870. In 1872 he went to the United States and introduced for the education of deaf-mutes the system of visible speech contrived by his father Alexander Melville Bell. He became professor of vocal physiology in Boston University, and exhibited his telephone, designed and partly constructed some years before, at the Philadelphia exhibition in 1876. Research Alexander Graham Bell
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