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METHOD:PUBLISH
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X-WR-CALDESC:9 January 1942: Jerzy Różycki\, Polish Cipher Bureau mathemati
 cian who helped break ENIGMA\, died when the M/S 'Lamoriciere\,' in which 
 he was crossing the Mediterranean in from France to Algeria\, sunk near th
 e Balearic Isles in a storm\, possibly after hitting a mine. \n\nIn 1929\,
  while still a student\, Różycki\, proficient in German\, was one of twent
 y-odd Poznań University mathematics students who accepted an invitation to
  attend a secret cryptology course organized at a nearby military installa
 tion by the Polish General Staff's Cipher Bureau\, headquartered in Warsaw
 .\n\nFrom September 1932 Różycki served as a civilian cryptologist with th
 e Polish General Staff's Cipher Bureau\, housed till 1937 in Warsaw's Saxo
 n Palace. He worked there together with fellow Poznań University mathemati
 cs alumni and Cipher Bureau cryptology-course graduates Marian Rejewski an
 d Henryk Zygalski.\n\nThe deciphering of the mathematical basis of the Eni
 gma\, and the construction of a copy of the coding machine were the work o
 f Polish mathematicians from the General Staff Code Bureau 4 (BS4): Marian
  Rejewski\, Jerzy Różycki and Henryk Zygalski\, who broke the Enigma secre
 t in 1932 and started to read the German secret dispatches. Based on their
  research\, Warsaw based AVA company built several copies of the Enigma ma
 chine in 1933.\n\nAfter Rejewski had reconstructed the German military Eni
 gma machine in December 1932\, Różycki and Zygalski likewise worked at ong
 oing development of methods and equipment to exploit Enigma decryption as 
 a source of intelligence. Różycki invented the 'clock' method\, which some
 times made it possible to determine which of the machine's rotors was at t
 he far right\, that is\, in the position where the rotor always revolved a
 t every depression of a key. \n\nLearn more about the success of the Polis
 h codebreakers in the link located below.\n
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DTSTART:20271107T020000
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TZOFFSETTO:-0500
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DTSTART:20270314T020000
TZOFFSETFROM:-0500
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RDATE:20290311T020000
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BEGIN:VEVENT
UID:b9ae69cd-a5ac-4f36-971b-8185d1522f01
DTSTAMP:20260425T152915Z
DESCRIPTION:9 January 1942: Jerzy Różycki\, Polish Cipher Bureau mathematic
 ian who helped break ENIGMA\, died when the M/S 'Lamoriciere\,' in which h
 e was crossing the Mediterranean in from France to Algeria\, sunk near the
  Balearic Isles in a storm\, possibly after hitting a mine. \n\nIn 1929\, 
 while still a student\, Różycki\, proficient in German\, was one of twenty
 -odd Poznań University mathematics students who accepted an invitation to 
 attend a secret cryptology course organized at a nearby military installat
 ion by the Polish General Staff's Cipher Bureau\, headquartered in Warsaw.
 \n\nFrom September 1932 Różycki served as a civilian cryptologist with the
  Polish General Staff's Cipher Bureau\, housed till 1937 in Warsaw's Saxon
  Palace. He worked there together with fellow Poznań University mathematic
 s alumni and Cipher Bureau cryptology-course graduates Marian Rejewski and
  Henryk Zygalski.\n\nThe deciphering of the mathematical basis of the Enig
 ma\, and the construction of a copy of the coding machine were the work of
  Polish mathematicians from the General Staff Code Bureau 4 (BS4): Marian 
 Rejewski\, Jerzy Różycki and Henryk Zygalski\, who broke the Enigma secret
  in 1932 and started to read the German secret dispatches. Based on their 
 research\, Warsaw based AVA company built several copies of the Enigma mac
 hine in 1933.\n\nAfter Rejewski had reconstructed the German military Enig
 ma machine in December 1932\, Różycki and Zygalski likewise worked at ongo
 ing development of methods and equipment to exploit Enigma decryption as a
  source of intelligence. Różycki invented the 'clock' method\, which somet
 imes made it possible to determine which of the machine's rotors was at th
 e far right\, that is\, in the position where the rotor always revolved at
  every depression of a key. \n\nLearn more about the success of the Polish
  codebreakers in the link located below.\n
DTSTART;TZID=America/New_York:20280109T000000
DTEND;TZID=America/New_York:20280109T235900
LOCATION:
SUMMARY:1942: Jerzy Różycki\, Polish Cipher Bureau mathematician\, died.
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