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.Added to timeline:
Date:
feb 17, 1876
aug 4, 1876
~ 5 months and 19 days