On This Day June 2

The inspiration for the telephone came when Alexander Graham Bell was working to improve the telegram in Boston, Massachusetts. The Scot was aided by a young repair mechanic Thomas Watson. On June 2, 1875 Watson made a mistake, the incorrect contact of a clamping screw which was too tight changed what should have been an intermittent transmission into a continuous current. Bell at the other end of the wire heard the contacter dropping - the first ever transmission of sound.

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