History of Telephone Timelimne By yoyokoda5 Dec 29, 1874 Performs music through telephone May 4, 1875 Alexander Bell makes resitsance in a wire Jun 2, 1875 Bell sends the sound of a steel reed through telephone Jan 20, 1877 Edison first in training Jan 28, 1878 First commercial exchange Feb 17, 1879 Bell telephone merges May 14, 1883 The Adelaide exchange Mar 3, 1885 The American Telephone Jan 13, 1887 Government moved patent Nov 2, 1889 A.G. Smith patents a telegraph switch Mar 10, 1891 Almon Strowger patents the Strowger switch Dec 30, 1899 American Bell Telephone Company is purchased Mar 18, 2014 Bibliography Bibliography
