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Alexander Graham Bell's invention of the telephone grew out of his research into ways to improve the telegraph.Throughout his life, Bell had also been interested in the education of deaf people. This ...
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Alexander Graham Bell's invention of the telephone grew out of his research into ways to improve the telegraph.Throughout his life, Bell had also been interested in the education of deaf people. This interest lead him to invent the microphone and, in 1876, his "electrical speech machine," which we now call a telephone. News of his invention quickly spread throughout the United States and even throughout Europe. By 1878, Bell had set up the first telephone exchange in New Haven, Connecticut. By 1884, long distance connections were made between Boston, Massachusetts and New York City. hide information
Catalog Number: CNBell
Alexander Graham Bell's invention of the telephone grew out of his research into ways to improve the telegraph.Throughout his life, Bell had also been interested in the education of deaf people. This interest lead him to invent the microphone and, in 1876, his "electrical speech machine," which we now call a telephone. News of his invention quickly spread throughout the United States and even throughout Europe. By 1878, Bell had set up the first telephone exchange in New Haven, Connecticut. By 1884, long distance connections were made between Boston, Massachusetts and New York City.
This
stamp was issued by the Canada Postal Service
on November 30, -0001 .
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