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Tour of the Bell Homestead, Brantford:
Invention of the Telephone:
Chronology by Alexander Graham
Bell
Conclusion of an article from CTGA
of Toronto Newsletter:
The chronology of the invention of the telephone,
to say nothing of the locations involved, often gets misinterpreted due to
inaccurate or abbreviated historical accounts. Fortunately, a proper
chronology (photograph on the right) exists in Bell’s own handwriting at the Bell Homestead.
It is printed out below:
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Invention of the telephone at Tutela Heights, Brantford, Summer of 1874
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First telephone constructed and speech and sounds heard, Boston, June 1875
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First draft of the telephone patent specifications prepared, Brantford,
September 1875
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Complete sentences first clearly understood by telephone, Boston, March 10,
1876
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Telephone exhibited at the Centennial Exhibition, Philadelphia, June 25,
1876
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First attempts to transmit speech over telegraph lines, Boston, July 7, 9 &
12, 1876
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First successful attempt to transmit speech over a telegraph line,
Brantford, August 1876
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First public demonstration of ability to speak over a telegraph line,
Brantford, 1876
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First transmission of a number of voices simultaneously over a telegraph
line, Brantford, 1876
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First conversation by telephone over telegraph line, Boston, October 9, 1876
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First long-distance conversation over a telegraph line (143 miles), Boston,
December 3, 1876
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First newspaper dispatch sent by telephone, Salem (Mass.), February 12, 1877
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First telephone line opened, Boston, April 4, 1877
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Back to Newsletter Main Page |
The chronology of the invention of the telephone in Bell’s
own handwriting hangs on the wall at the Bell Homestead. It is printed out
to your left.
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