telephones
Alexander Graham Bell invented the telephoneississ. He tutored Hellen Keller. He opened a School for Teachers of the Deaf in Boston, Massachusetts. He, as well as others, started The National...
He married Mabel Hubbard and had two sons, Edward and Robert, who died in infancy and two daughters, Elsie May and Marian (they called her Daisy).
He invented the telephone.
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