Timeline: The Phone | Timetoast

Mar 10, 1876

The First Phone

http://www.americaslibrary.gov/jb/recon/jb_recon_telephone_1.html
May 2, 1900

Telephone transmissions

http://www.greatachievements.org/?id=3625
May 2, 1904

Fleming invents the vacuum diode

http://www.greatachievements.org/?id=3625
May 8, 1919

First transcontinental telephone call

http://www.greatachievements.org/?id=3625
May 8, 1920

Switching systems and rotary-dial telephones

http://www.greatachievements.org/?id=3625
May 10, 1947

A Mathematical Theory of Communication
Jul 10, 1947

North American Numbering Plan
May 10, 1949

First phone to combine a ringer and handset
May 10, 1951

Direct long distance calling first available
May 10, 1956

First transatlantic telephone cable