BEGIN:VCALENDAR VERSION:2.0 PRODID:-//archive.cryptologicfoundation.org//NONSGML kigkonsult.se iCalcrea tor 2.30.10// CALSCALE:GREGORIAN METHOD:PUBLISH UID:4f077439-05dd-4947-87f0-7162d3c21ccd X-WR-CALDESC:2 February 1462: Birthday of Johannes Trithemius\, born Johann Heidenberg\, was the author of the first printed book on cryptography pub lished in Europe. He was a German Benedictine abbot and a polymath active in the German Renaissance\, as a lexicographer\, chronicler\, cryptographe r and occultist. He took considerable influence on the development of earl y modern and modern occultism\; among his students were Heinrich Cornelius Agrippa and Paracelsus.\n\nLearn about the NCMF's acquisition of a rar e publication by Trithemius from Dr. David Kahn via the link at the bo ttom of the page.\n\nThe major works of Trithemius include 'Steganographia \,' (which means in Greek\, 'hidden writing') written circa 1499\, 'Polygr aphiae\,' a cryptographic work and 'De Septum Secundeis\,' a history of th e World based on astrology\, both of which were published in 1518.\n\nPoly graphiae remains the oldest book at the National Cryptologic Museum. It's the first printed book on cryptology. And if you look closely at the paper peeking from behind the cover\, in the early days of printing\, presses w ould use scraps of old manuscripts as filler material between the cover an d the opening pages. Historians have discovered manuscripts that were thou ght to be lost—hidden within the covers of other books.\n\nTrithemius was also a magician. In his trilogy -'Steganographia\,' books one and two were clearly systems for encoding and were the first books written on cryptogr aphy. The third book in the trilogy was more buried in the guise of occult astrology. Many took the writing literally and thought the numbers contai ned secrets to conjuring spirits. Scholars\, however\, went further and di scovered the writing contained a code and began working to decipher it. Th e messages encrypted in Trithemius's tables turned out to be somewhat ordi nary sentences. X-WR-RELCALID:e487f6c8f54f4c218507e98e87830904 X-WR-TIMEZONE:America/New_York BEGIN:VTIMEZONE TZID:America/New_York BEGIN:STANDARD TZNAME:EST DTSTART:20251102T020000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RDATE:20261101T020000 END:STANDARD BEGIN:DAYLIGHT TZNAME:EDT DTSTART:20250309T020000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RDATE:20260308T020000 RDATE:20270314T020000 END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:9018caf9-a4cb-4e6c-81b8-9e6b724e53b5 DTSTAMP:20260608T095239Z DESCRIPTION:2 February 1462: Birthday of Johannes Trithemius\, born Johann Heidenberg\, was the author of the first printed book on cryptography publ ished in Europe. He was a German Benedictine abbot and a polymath active i n the German Renaissance\, as a lexicographer\, chronicler\, cryptographer and occultist. He took considerable influence on the development of early modern and modern occultism\; among his students were Heinrich Cornelius Agrippa and Paracelsus.\n\nLearn about the NCMF's acquisition of a rare publication by Trithemius from Dr. David Kahn via the link at the bot tom of the page.\n\nThe major works of Trithemius include 'Steganographia\ ,' (which means in Greek\, 'hidden writing') written circa 1499\, 'Polygra phiae\,' a cryptographic work and 'De Septum Secundeis\,' a history of the World based on astrology\, both of which were published in 1518.\n\nPolyg raphiae remains the oldest book at the National Cryptologic Museum. It's t he first printed book on cryptology. And if you look closely at the paper peeking from behind the cover\, in the early days of printing\, presses wo uld use scraps of old manuscripts as filler material between the cover and the opening pages. Historians have discovered manuscripts that were thoug ht to be lost—hidden within the covers of other books.\n\nTrithemius was a lso a magician. In his trilogy -'Steganographia\,' books one and two were clearly systems for encoding and were the first books written on cryptogra phy. The third book in the trilogy was more buried in the guise of occult astrology. Many took the writing literally and thought the numbers contain ed secrets to conjuring spirits. Scholars\, however\, went further and dis covered the writing contained a code and began working to decipher it. The messages encrypted in Trithemius's tables turned out to be somewhat ordin ary sentences. DTSTART;TZID=America/New_York:20260202T060000 DTEND;TZID=America/New_York:20260202T060001 LOCATION: SUMMARY:1462: Birthday of Johannes Trithemius END:VEVENT END:VCALENDAR