ALEXANDER GRAHAM BELL 1847-1922
(He discovered first practical telephone)
Alexander Graham Bell, was born on March 3, 1847 in Edinburg, Scotland. In 1871 Bell went to Boston, Massachusetts and in 1875 Bell did some experiment that carry him to discover first practical telephone. In Febuary 1876, Bell held collect paten for his invention and got reward after several weeks.
Bell condducted a series of public demonstration, ever increasing the distance between the two telephone. At the Centennial Exhibition in Philadelphia, in 1876, Bell demontrated the telephone to the Emperor of Brazil, Dom Pedro II. The Bell Telephone Company was organized om July 9,1877.
In the last 30 years of his life, Bell was involved in a wide range of projects and pursued them at a furious pace. He worked on inventions if flight (the tetrahedral kite), scientific publications (Sciences magazine), and exploration of the earth (National Geographic magazine). Bell died peacefully, with his wife by his side, in Baddeck, Nova Scotia, Canada, on August 2, 1922. The entire telephone system wa shut down for one minute in tribute to his life.