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"On This Date in History" Calendar

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

February 2020

This Month
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Month
Year
S M T W T F S
26 27 28 29 30 Jan 31 Feb 1
1942: German Navy introduced 4-rotor Enigma
1942: FRUMEL established to assist General MacArthur
1943: SIS began Venona Project
1949: USAFSS received first cryptologic units from the ASA.
2 3 4 5 6 7 8
1462: Birthday of Johannes Trithemius
1945: Truck lost at Colmar, France causes theater-wide search
1944: Colossus activated by Bletchley Park.
1802: Sir Charles Wheatstone, cipher inventor, born.
1919: Lt. William Friedman left AEF G6A2 to return to U.S.
1587: Mary, Queen of Scots, executed for treason.
1962: Air Force Security Service began operations in South Vietnam
1963: Intercept operations began at Phu Bai
2010: Peter Calvocoressi died.
1963: Genevieve Young Hitt, early U.S. female cryptologist, born in 1885 and died on 6 Feb 1963.
1930: David Kahn, noted cryptologic historian was born.
1941: First Americans visit Bletchley Park.
1969: USAF EC-47, "CAP 72," lost in Vietnam
1943: Naval Security Station moved to Nebraska Ave.
1973: EC-47 with the callsign Baron-52 shot down over Laos
1960: Inventor Gilbert Vernam died.
9 10 11 12 13 14 15
1926: Enigma introduced into German Navy as Radio Key C.
1943: Establishment of the 805th Signal Service Company for operation of the SIGSALY.
1970: RAND Corp published Ware Report
1944: Signing of King-Marshall Agreement
1946: The ENIAC computer begins operating.
1962: Gary Francis Powers was Released After Spending 21 Months in a Soviet Prison.
1952: Inventor Edward Hebern died.
16 17 18 19 20 21 22
1973: Ribbon-cutting for National SIGINT Operations Center (NSOC)
1960: Howard Engstrom - Exceptional Service
1933: Government seizure of cryptologist Herbert Yardley's "Japanese Diplomatic Secrets."
1939: Japanese first use of PURPLE
1777: Benedict Arnold overlooked for promotion.
1996: Memorial Wall in OPS2B (at NSA) was dedicated.
1976: "Village Voice" Published Full Pike Report
1972: NSCID 6 established CSS.
1846: Sarah G. Bagley became first female telegrapher.
23 24 25 26 27 28 Feb 29
1927: Radio Act of 1927.
1954: First NSA Historian - CAPT Thomas Dyer, USN
1863: US govt took control of commercial telegraphs during Civil War.
1881: Joseph Mauborgne, code & cipher expert, was born.
1917: President Wilson was informed of the contents of the Zimmermann telegram.
1932: Boris Hagelin receives first cryptographic patent.
2001: Claude Shannon, cryptologic pioneer, died.
1981: NSA sponsored exhibit opened at Smithsonian.
1991: Cessation of Gulf War hostilities.
1996: Lt Gen Kenneth Minihan, USAF, became DIRNSA.
1993: al-Qaida terrorists bombed World Trade Center.
Saturday, February 1, 2020
Sunday, February 2, 2020
Monday, February 3, 2020
Wednesday, February 5, 2020
Thursday, February 6, 2020
Friday, February 7, 2020
Saturday, February 8, 2020
Sunday, February 9, 2020
Monday, February 10, 2020
Tuesday, February 11, 2020
Wednesday, February 12, 2020
Saturday, February 15, 2020
Sunday, February 16, 2020
Monday, February 17, 2020
Tuesday, February 18, 2020
Thursday, February 20, 2020
Friday, February 21, 2020
Saturday, February 22, 2020
Sunday, February 23, 2020
Monday, February 24, 2020
Tuesday, February 25, 2020
Wednesday, February 26, 2020
Friday, February 28, 2020

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