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UID:7f3afe66-00ac-4aca-bfa1-4f6e4320103f
X-WR-CALDESC:On 11 July 1865\, the first US patent was granted for a cipher
  device to Signal Corps Sergeant Edwin H. Hawley\, for multiple alphabetic
  device which was a fan-like set of 26 wooden tablets\, each with a differ
 ent ciphertext alphabet on it\, designed for use with a keyword. <i>Info p
 er David Kahn's book\, 'The Codebreakers.'</i>
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DTSTART:20281105T020000
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RDATE:20291104T020000
RDATE:20301103T020000
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DTSTART:20290311T020000
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UID:992beb40-3197-4c22-b515-1430dad398a7
DTSTAMP:20260426T174814Z
DESCRIPTION:On 11 July 1865\, the first US patent was granted for a cipher 
 device to Signal Corps Sergeant Edwin H. Hawley\, for multiple alphabetic 
 device which was a fan-like set of 26 wooden tablets\, each with a differe
 nt ciphertext alphabet on it\, designed for use with a keyword. <i>Info pe
 r David Kahn's book\, 'The Codebreakers.'</i>
DTSTART;TZID=America/New_York:20290711T000000
DTEND;TZID=America/New_York:20290711T235900
LOCATION:
SUMMARY:1865: First US patent for cipher device to Edwin H. Hawley
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