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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.

November 2020

This Month
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Month
Year
S M T W T F S
Nov 1 2 3 4 5 6 7
1919 Britain's Government Code & Cypher School Established
1969: William Friedman died.
1952: NSA Established. LTG Ralph Canine, Director.
1918: The "Seneca" field code was released.
1942 COMINT Station Established on Guadalcanal
1944: Captain Joseph Wenger became head of OP-20-G.
1953: First NSA Newsletter
8 9 10 11 12 13 14
1895: Ralph J. Canine, first DIRNSA was born.
1918: Armistice signed ending WWI.
1917: AEF Radio Intelligence Section opened intercept site at Souilly, France.
1989: Fall of Berlin wall began.
1918: 1st Fixed U.S. Field Station in Houlton, ME.
15 16 17 18 19 20 21
1912: Herbert O. Yardley hired as State Department code clerk.
1989: Center for Cryptologic History was established.
1970: Attempt to rescue POWs from North Vietnam.
1969: First permanent ARPANET link established.
1921: W. Friedman appointed Chief Cryptanalyst for the Signal Corps
22 23 24 25 26 27 28
1941: Herbert Yardley fired by Canada's National Research Council.
1976: Data Encryption Standard Approved
1956: Lt Gen John A. Samford, USAF, became DIRNSA.
1986: Ronald Pelton, former NSA analyst, arrested for spying.
1957: Lt Gen Samford Officially Opened the NSA OPS1 Building
1960: VADM Laurence Frost, USN, became DIRNSA.
1616: Birth date of John Wallis
1866: First Encoded American Diplomatic Telegram
29 Nov 30 Dec 1 2 3 4 5
Sunday, November 1, 2020
Monday, November 2, 2020
Wednesday, November 4, 2020
Friday, November 6, 2020
Monday, November 9, 2020
Wednesday, November 11, 2020
Thursday, November 12, 2020
Monday, November 16, 2020
Tuesday, November 17, 2020
Friday, November 20, 2020
Saturday, November 21, 2020
Sunday, November 22, 2020
Monday, November 23, 2020
Tuesday, November 24, 2020
Wednesday, November 25, 2020

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