BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//archive.cryptologicfoundation.org//NONSGML kigkonsult.se iCalcrea
 tor 2.30.10//
CALSCALE:GREGORIAN
METHOD:PUBLISH
UID:46a31421-b329-495f-8625-7e0827d33ba5
X-WR-CALDESC:24 June 1918: The 'Potomac Code' - the first of the AEF 'River
 ' series of field codes was issued.\n\nSee the link below for 'American Ar
 my Field Codes in the American Expeditionary Forces during the First World
  War.' - an NSA declassified Friedman document.
X-WR-RELCALID:53c270904a75458e91dce5bee94e5de9
X-WR-TIMEZONE:America/New_York
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:STANDARD
TZNAME:EST
DTSTART:20261101T020000
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
RDATE:20271107T020000
RDATE:20281105T020000
END:STANDARD
BEGIN:DAYLIGHT
TZNAME:EDT
DTSTART:20270314T020000
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
RDATE:20280312T020000
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:7a74357a-2d62-47dd-8b1f-e1768e25d4cc
DTSTAMP:20260724T181203Z
DESCRIPTION:24 June 1918: The 'Potomac Code' - the first of the AEF 'River'
  series of field codes was issued.\n\nSee the link below for 'American Arm
 y Field Codes in the American Expeditionary Forces during the First World 
 War.' - an NSA declassified Friedman document.
DTSTART;TZID=America/New_York:20270624T000000
DTEND;TZID=America/New_York:20270624T235900
LOCATION:
SUMMARY:1918: 'Potomac Code' was issued.
END:VEVENT
END:VCALENDAR