Cryptologic Dates in History Calendar

"On This Date in Cryptologic History" Calendar

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

July 2026

This Month

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28	29	Jun 30	Jul 1	2	3	4
			1921: William Friedman joined War Department	1946: Army-Navy Crypto Equipment Coordinating Committee Established	1945: Cryptographic Security Board established
			1931: US Coast Guard Established Cryptanalytic Section	1892: Boris Hagelin inventor of Convertor M-209 cryptodevice, born

5	6	7	8	9	10	11
1917: General Order, No. 8 - established HQ, AEF in France		2005: al-Qaida Bombings in London	1942: Arlington Hall Station - Official Military Intelligence Post	1943: Project BEECHNUT established.		1865: First US patent for cipher device to Edwin H. Hawley
1977: VADM B. R. Inman, USN, became DIRNSA			1942: President Roosevelt Limited COMINT Activities to the Army, Navy, & FBI.	1957: First public acknowledgment of NSA		1918: Signal Corps began first communications security monitoring in France
						1995: CIA Public Ceremony for VENONA Declassification

12	13	14	15	16	17	18
1918: William Friedman reports to AEF G2A6 Chaumont, France	1993: National Cryptologic Museum opened to NSA/CSS personnel, their families, & to other members of Intelligence Community.	1977: House of Representatives Established Permanent Select Committee on Intelligence.	1951: State Department established liaison unit at Arlington Hall.	1943: First WAC personnel arrived at Arlington Hall Station.	1586: Mary, Queen of Scots, sent treasonous coded response to the Babington Letter.
	2016: The NSA Hawaii (NSAH) facility was dedicated as the Washington Wong Building.		1949: AFSA formally activated, RADM Earl E. Stone, USN, named director.		1911: Cryptologic pioneers Parker Hitt & Genevieve Young were married.
			1928: ENIGMA Introduced into German Army
			1951: MG Ralph J. Canine, USA, named Director, AFSA

19	20	21	22	23	24	25
	1988: Eight year Iran-Iraq War ends.		2004: 9/11 Commission Report Released.	1984: GUNMAN Project found typewriter implants in U.S. Embassy in Moscow.	1889: Agnes Meyer Driscoll, noted cryptanalyst, was born.	1939: Meeting of Pyry took place.....
	1942: Gen MacArthur moved HQ to Brisbane. Central Bureau moved in Sept.		1919: Patent issued to Gilbert Vernam for concept of machine encipherment.
	1976: Joseph Rochefort, who led Station HYPO in WWII, died.

26	27	28	29	30	Jul 31	Aug 1
1947: National Security Act Passed.	1866: First use of transatlantic telegraph cable.	1916: U.S. Navy Code & Signal Section was established.	1806: Aaron Burr’s “Cipher Letter” to General Wilkinson, leading to charges of treason against Burr.	1942: The WAVES were established....	1918: The "Wabash" Field Code was issued.
		1917: Capt Frank Moorman tasked to form Radio Intelligence Section.	1924: William Friedman receives first of 30 patents....		1919: Agnes Meyer Driscoll was discharged from the US Navy & in 1959, retired from NSA.

1945: Cryptographic Security Board established

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2005: al-Qaida Bombings in London

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1942: Arlington Hall Station - Official Military Intelligence Post

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1942: President Roosevelt Limited COMINT Activities to the Army, Navy, & FBI.

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1918: William Friedman reports to AEF G2A6 Chaumont, France

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1977: House of Representatives Established Permanent Select Committee on Intelligence.

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1943: First WAC personnel arrived at Arlington Hall Station.

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1984: GUNMAN Project found typewriter implants in U.S. Embassy in Moscow.

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1889: Agnes Meyer Driscoll, noted cryptanalyst, was born.

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1939: Meeting of Pyry took place.....

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1947: National Security Act Passed.

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1866: First use of transatlantic telegraph cable.

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1942: The WAVES were established....

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