Encyclopedia > Switching

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The process, usually automated, of connecting and disconnecting telephone calls through a telephone network. Carried out by machines called Switches (US term), or Exchanges (UK term for the same thing).

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29 December

... Seventh Cavalry[?] massacres over 400 men, women and children at Wounded Knee, South Dakota. 1891 - Thomas Edison patents the radio 1911 - Sun Yat-sen becomes the ...