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UID:c23f3a2e-b17d-4e78-8c8e-f32e9f2c149e
X-WR-CALDESC:14 June 1942: The Signal Intelligence Service took possession 
 of Arlington Hall. SIS was an early predecessor to the NSA and later appro
 priated by the National Security Council who reappointed the resources int
 o the modern National Security Agency. William Friedman began the division
  with three 'junior cryptanalysts' in April 1930. Their names were Frank R
 owlett\, Abraham Sinkov\, and Solomon Kullback.\n\nExcerpted from <b>NSA d
 ocument - <i>Pearl Harbor Revisited: Signal Intelligence Service</i></b> (
 see link below)\n\n'It should be remembered that SIS was not attached to t
 he Army's intelligence organization. Military Intelligence considered cryp
 tanalysis merely an adjunct of cryptography\, which belonged in the Signal
  Corps. This situation continued until early in the war.\n\nSIS began with
  purposes other than foreign intelligence\; it was to compile systems for 
 Army use and prepare cryptanalysts for wartime operations. Again like its 
 counterpart\, SIS produced valuable information almost as a by-product of 
 training and was transformed into a production office for current COMINT.'
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X-WR-TIMEZONE:America/New_York
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DTSTART:20251102T020000
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RDATE:20271107T020000
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DTSTART:20260308T020000
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TZOFFSETTO:-0400
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BEGIN:VEVENT
UID:5b89006b-db19-4e6d-9f3a-f35a63a20ecb
DTSTAMP:20260424T080718Z
DESCRIPTION:14 June 1942: The Signal Intelligence Service took possession o
 f Arlington Hall. SIS was an early predecessor to the NSA and later approp
 riated by the National Security Council who reappointed the resources into
  the modern National Security Agency. William Friedman began the division 
 with three 'junior cryptanalysts' in April 1930. Their names were Frank Ro
 wlett\, Abraham Sinkov\, and Solomon Kullback.\n\nExcerpted from <b>NSA do
 cument - <i>Pearl Harbor Revisited: Signal Intelligence Service</i></b> (s
 ee link below)\n\n'It should be remembered that SIS was not attached to th
 e Army's intelligence organization. Military Intelligence considered crypt
 analysis merely an adjunct of cryptography\, which belonged in the Signal 
 Corps. This situation continued until early in the war.\n\nSIS began with 
 purposes other than foreign intelligence\; it was to compile systems for A
 rmy use and prepare cryptanalysts for wartime operations. Again like its c
 ounterpart\, SIS produced valuable information almost as a by-product of t
 raining and was transformed into a production office for current COMINT.'
DTSTART;TZID=America/New_York:20260614T060000
DTEND;TZID=America/New_York:20260614T060001
LOCATION:
SUMMARY:1942: Signal Intelligence Service took possession of Arlington Hall
 .
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