Alexander Graham Bell was a scientist and inventor known for his work on the telephone
When and Where was Alexander Graham Bell Born?
3rd March 1847, 16 South Charlotte Street, Edinburgh, Scotland.
Alexander Graham Bell was the second of three sons of Alexander Melville Bell and Elise Grace Symonds Bell noted elocutionists. His mother was deaf.
Royal High School, Edinburgh. Edinburgh University. University College, London.
Chronology/Biography of Alexander Graham Bell:
Bell first took up teaching and then went on to medical studies.
1871: Emigrates to the United States of America where he studied sound waves with Hermann von Helmholtz. He set up a training school for the deaf in Boston, Massachusetts.
1873: Alexander Graham Bell became Professor of Vocal Physiology at Boston University.
1875: First transmission of sound heard by Bell and his assistant Thomas Watson on 2nd June.
1876: Patent No 174,465 for the telephone is granted on 7th March. On 10th March “Mr Watson, come here I want you” are the first words heard over copper wires. Demonstrates his one way voice transmission system at the Philadelphia Centennial exposition on June 25th. First two way telephone conversation between Bell and Watson on 9th October.
1877: Alexander Graham Bell forms the Bell telephone Company on 9th July.
1878: Birth of Daughter Elsie May.
1879: Invents the audiometer which tested schoolchildren for deafness.
1880: Birth of Daughter Marion (Known as Daisy). The bell Telephone Company is restructured to become American Telephone and Telegraph (ATandT). Establishes the Volta Laboratory. Invents the photophone.
1883: Opens a school in Washington ostensibly for deaf children although any child is accepted. Founds the Journal “Science”
1885: School closes due to shortage of money due to patents claims ranged against him.
1887: Alexander Graham Bell is introduced to the blind girl Helen Keller. Invents the Graphophone.
1888: Is a founder member of the National Geographic Society.
1890: Conducts the first nationwide survey of deafness.
1891: Alexander Graham Bell begins experiments in flight at Cape Breton, Canada.
1894: Develops wings and propellers.
1898: Alexander Graham Bell experiments with kites. Becomes President of the National Geographic Society of America.
1901: First flight of his box kite.
1906: Begins to work on the hydrofoil instead of the aeroplane.
1907: Thomas Selfridge unsuccessfully pilots one of his kites Cygnet 1.
1915: First transcontinental telephone conversation on the 25th January between Alexander Graham Bell in New York and Watson in San Francisco.
1919: Sets world speed record of 70 mph with the HD4 hydrofoil.
1877 to Mabel Hubbard. (Mabel was also deaf) (died 1923).
When and Where did he Die?
2nd August 1922, Beinn Bhreag, Cape Breton Island, Nova Scotia, Canada.
Age at Death:
Site of Grave:
Beinn Bhreag Estate, Cape Breton Island, Nova Scotia.
Places of Interest:
Royal High School.