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    TIL This photo of U.S. Army code breakers trained by William Friedman and his wife Elizebeth during WW1 spells out ‘Knowledge is Power.’ By facing either forward or sideways, the soldiers formed a coded phrase utilizing Sir Francis Bacon’s biliteral cipher.

    TIL This photo of U.S. Army code breakers trained by William Friedman and his wife Elizebeth during WW1 spells out ‘Knowledge is Power.’ By facing either forward or sideways, the soldiers formed a coded phrase utilizing Sir Francis Bacon’s biliteral cipher.

    Today I Learned (TIL) /u/aim179

    TIL This photo of U.S. Army code breakers trained by William Friedman and his wife Elizebeth during WW1 spells out ‘Knowledge is Power.’ By facing either forward or sideways, the soldiers formed a coded phrase utilizing Sir Francis Bacon’s biliteral cipher. submitted by /u/aim179
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