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United States Communication: Invention of telephone. (feb 17, 1876 – aug 4, 1876)

Description:

Alexander Graham Bell invented the telephone at the nation's centennial exposition in Philidelphia in 1876. By 1915, the telephone wires connected Americans from coast to coast.

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Date:

feb 17, 1876
aug 4, 1876
~ 5 months and 19 days

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