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| | General World History |
 | | On January 7, 1904 the distress call 'CQD' was introduced. |
 | | In 1909, the liner, "Arapahoe", was the first ship to use the radio distress call, S.O.S. The ship found itself in trouble off Cape Hatteras, NC. |
 | | S.O.S. remains the standard international distress signal for ships and airplanes. |
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