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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.

August 2027

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S M T W T F S
Aug 1 2 3 4 5 6 7
1972: Lt. Gen Sam Phillips Becomes DIRNSA....
1943: Australian Coastwatchers Send Code
1918: "Mohawk" Field Code was issued.
1955: Prototype U-2 Flight
1963: Limited Nuclear Test Ban Treaty
1945: US Dropped Atomic Bomb Over Hiroshima
1944: "The Harvard Mark 1"
1969: VADM Noel Gayler becomes DIRNSA
1987: Death of Joseph Desch - innovative engineer for the National Cash Register Company
1925: Radio Orphan Annie Secret Society
1958: Herbert O. Yardley Died
1958: Dr. Louis Tordella became D/DIRNSA
1994: Solomon Kullback Died
1920: Brigadier John H. Tiltman Joined GC & CS
8 9 10 11 12 13 14
1975: Lt Gen Lew Allen Testifies
1945: Nagasaki
1972: Last U.S. Ground Combat Unit Leaves Vietnam
1918: "Allegheny" Field Code was issued.
1944: Spy Velvalee Dickinson Sentenced
2008: Georgia-Russia Cyber Attacks
1942: Hedy Markey (Lamarr) Receives Patent
1981: IBM PC Debut
1982: Navajo Code Talkers Day Declared
15 16 17 18 19 20 21
1945: Japan Announced Surrender
1858: Early Telegraph Communications
1846: Étienne Bazeries Birth Date
22 23 24 25 26 27 28
1956: U.S. Navy Recon Plane Shot Down
1948: Stone Board Has First Meeting
1914: Russian Navy Seized Codebooks
1878: Colonel Parker Hitt's Birth Date
1907: Abraham Sinkov was born.
1778: Beginnings of Culper Spy Ring with GEN Washington & MAJ Tallmadge
Poland and Britain signed the Agreement of Mutual Assistance.
1892: Elizebeth Smith Friedman Birth Date
29 30 Aug 31 Sep 1 2 3 4
1949: Soviets Detonate Atomic Bomb
1914: German Intercepts of Russian Radio Traffic
Sunday, August 1, 2027
Monday, August 2, 2027
Tuesday, August 3, 2027
Wednesday, August 4, 2027
Thursday, August 5, 2027
Friday, August 6, 2027
Saturday, August 7, 2027
Sunday, August 8, 2027
Monday, August 9, 2027
Wednesday, August 11, 2027
Thursday, August 12, 2027
Saturday, August 14, 2027
Sunday, August 15, 2027
Monday, August 16, 2027
Saturday, August 21, 2027
Sunday, August 22, 2027
Wednesday, August 25, 2027
Thursday, August 26, 2027
Friday, August 27, 2027
Sunday, August 29, 2027
Tuesday, August 31, 2027

Learn About the Pioneers

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