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25/09/1956 The first trans-Atlantic telephone cable goes into service

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BUILDING THE FIRST TRANSATLANTIC TELEPHONE CABLE "VOICE BENEATH THE SEA" MD46164

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25th September 1956: Inauguration TAT-1, the first transatlantic telephone cable

TAT-1, Transatlantic No., was the first transatlantic telephone cable system. Between 1955 and 1956, cable was laid between Gallanach Bay, near Oban, Scotland and Clarenville, Newfoundland and Labrador. It was inaugurated in 1956, initially carrying 36 telephone channels.
    • Essentials 

    • Early history: telegraph and coaxial cables 

    • Modern history 

    • Cable repair 

    • Intelligence gathering 

    • Environmental impact 

    • Notable events