Close
Menu

Cryptologic History

Every little bit helps the NCF to influence the cryptologic future by sharing our educational resources, stimulating new knowledge, and commemorating our heritage.

"On This Date in Cryptologic History" Calendar

Learn about a wide variety of historical events related to cryptology, computers, math, cybersecurity, Intelligence, and more.

March 2030

This Month
Select a Date to View
Jump to a Month
Month
Year
Go to Previous Go to Next
S M T W T F S
24 25 26 27 Feb 28 Mar 1 2
1917: Zimmermann Telegram released to U.S. press.
1971: Cryptologic Pioneer Colonel Parker Hitt.
1918: German ADFGVX cipher first used.
1930: First hire at SIS - Annie Louise Newkirk
1951: Shelby Patterson became chief of the AFSA school.
1971: Loss of Army UH-1 & its crew.
3 4 5 6 7 8 9
1832: Death of Jean-François Champollion.
1942: Station HYPO began reading Japanese system JN-25.
1924: William Friedman testifies re: Teapot Dome scandal.
1973: 509th Radio Research Group was resubordinated.
1953: "Direct" SIGINT support to tactical air control center began on Cho Do Island.
1967: USAF EC-47 loss in Vietnam.
1971: Army RU-8 shot down, Vietnam.
1946: BRUSA Communications Intelligence Agreement
1969: Death of Ralph J. Canine, first DIRNSA.
1975: STONEHOUSE site officially closed.
1954: USAFSS started Airborne Reconnaissance Program
10 11 12 13 14 15 16
1876: First successful voice transmission over Bell's telephone.
1935: Navy cryptologic organization redesignated OP-20-G as Communications Security Group.
1951: AFSA Training Branch Established
1946: CREAM replaced ULTRA.
1918: Radio Intelligence Service, Mexican border, was established.
1942: Evacuation of Station CAST.
1981: USAF RC-135 lost, Shemya.
17 18 19 20 21 22 23
1974: Horst Feistel received a patent for "Block Cipher Cryptographic System."
1938: SIS started receiving messages from Purple.
1962: ASA flew first airborne radio direction finding mission in Vietnam.
24 25 26 27 28 29 30
1999: Lt Gen Michael Hayden, USAF, became DIRNSA.
1994: Griffiss Air Force Base finds malware
Vietnam Veterans Day
1938: Chief Signal Officer Mauborgne permitted to perform intercept and cryptologic services for peacetime training.
1973: Last U.S. troops left Vietnam.
Mar 31 Apr 1 2 3 4 5 6
Friday, March 1, 2030
Saturday, March 2, 2030
Monday, March 4, 2030
Tuesday, March 5, 2030
Wednesday, March 6, 2030
Thursday, March 7, 2030
Friday, March 8, 2030
Saturday, March 9, 2030
Sunday, March 10, 2030
Monday, March 11, 2030
Tuesday, March 12, 2030
Friday, March 15, 2030
Tuesday, March 19, 2030
Wednesday, March 20, 2030
Friday, March 22, 2030
Tuesday, March 26, 2030
Thursday, March 28, 2030
Friday, March 29, 2030
Saturday, March 30, 2030

Learn About the Pioneers

Learn about the various individuals and groups who paved the way in the field of cryptology, cyber, computers, and more.