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PRODID:-//archive.cryptologicfoundation.org//NONSGML kigkonsult.se iCalcrea
 tor 2.30.10//
CALSCALE:GREGORIAN
METHOD:PUBLISH
UID:90eeab29-ff31-4062-8789-f6d8501b516e
X-WR-CALDESC:It's National Inventors' Day! It is generally believed that th
 e inventor of the modern-day disk cipher was Charles Wheatstone in 1865. H
 owever\, this little-known device was discovered at the Hamden Historical 
 Society of Connecticut by William Friedman in the 1940s. Engraved 'Decius 
 Wadsworth 1817\,' it is considered by Friedman to be the first modern disk
  cipher invented. \n\nThe National Cryptologic Museum partnered with the H
 amden Historical Society to be able to display this great piece of history
 . The Wadsworth Cipher was on display during the summer of 2024.\n\nLearn 
 more about this cipher device and William Friedman's review via the link p
 rovided below.\n\nPhoto credit: Hamden Historical Society.
X-WR-RELCALID:d1c82d6adf750fbf730df757c7b84531
X-WR-TIMEZONE:America/New_York
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TZID:America/New_York
BEGIN:STANDARD
TZNAME:EST
DTSTART:20251102T020000
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
RDATE:20261101T020000
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TZNAME:EDT
DTSTART:20250309T020000
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
RDATE:20260308T020000
RDATE:20270314T020000
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BEGIN:VEVENT
UID:a2d36499-dcf2-401f-b9f8-6f1ee58f617f
DTSTAMP:20260424T094023Z
DESCRIPTION:It's National Inventors' Day! It is generally believed that the
  inventor of the modern-day disk cipher was Charles Wheatstone in 1865. Ho
 wever\, this little-known device was discovered at the Hamden Historical S
 ociety of Connecticut by William Friedman in the 1940s. Engraved 'Decius W
 adsworth 1817\,' it is considered by Friedman to be the first modern disk 
 cipher invented. \n\nThe National Cryptologic Museum partnered with the Ha
 mden Historical Society to be able to display this great piece of history.
  The Wadsworth Cipher was on display during the summer of 2024.\n\nLearn m
 ore about this cipher device and William Friedman's review via the link pr
 ovided below.\n\nPhoto credit: Hamden Historical Society.
DTSTART;TZID=America/New_York:20260211T060000
DTEND;TZID=America/New_York:20260211T060001
LOCATION:
SUMMARY:Inventors' Day & the Wadsworth Cipher
END:VEVENT
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