Invention of telephone

• Alexander Graham Bell born on March 3, 1847, in Edinburgh, Scotland.
• Bell’s father, grandfather and brother had all been associated with work on elocution and speech, and both his mother and wife were deaf, influencing Bell’s life’s work.
• His research on hearing and speech further led experiment with hearing devices witch eventually culminated in Bell being awarded the first US patent for telephone in 1876.
The Bell Company
• In 1877 Bell started his own company formerly known as “The Bell Company”.
• Allowed thousands of people the ability to own a phone.
• The company built the first long distance line from Boston to New York in 1884.
• It is now known as the “American Telephone and Telegraph Company”.
Telephone
• In 1871, Bell started working on the harmonic telegraph — a device that allowed multiple messages to be transmitted over a wire at the same time. While trying to perfect this technology, which was backed by a group of investors, Bell became preoccupied with finding a way to transmit human voice over wires.
First telephone call
March 10, 1876
• Bell succeeded in getting his telephone to work, using a liquid transmitter, a design made by Elisha Gray.
• First words told on phone by Graham Bell “Mr....

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