The history of the telephone By caBOSE1337 Jan 1, 1870 Alexander graham bell starts on the telephone Period: Jan 1, 1870 to Mar 10, 1876 telephone Apr 1, 1871 Bell starts teaching deaf people Oct 1, 1874 Alexander graham Bell recieved financial backing from his father in law. Jun 2, 1875 Bells theory of the telephone confirmed Jan 1, 1876 Alexander invents the telephone Jan 1, 1876 Elisha Gray comes in with a patent 3 hours after Alexander Graham Bell. Mar 10, 1876 Alex graham bell Makes first telephhone call
