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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.

December 2028

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S M T W T F S
26 27 28 29 Nov 30 Dec 1 2
1887: U.S. Navy began using "The U.S. Navy Secret Code"
1932: Polish Cipher Bureau Success!
1950: ATLAS became operational.
3 4 5 6 7 8 9
Pearl Harbor Day
1992: Premiere of William Gibson's "Agrippa"
1906: Birth of Grace Hopper - computer pioneer and U.S. Navy Rear Admiral
10 11 12 13 14 15 16
1815: Birth of Ms. Ada Lovelace, the world's first computer programmer
1941: Germany and Italy Declared War on the U.S.
1977: Filing for RSA Patent
1562: Death of Johannes Trithemius
1972: NSOC Inaugurated
1958: First NSA Holiday Party.
17 18 19 20 21 22 23
OTD in 1993: National Cryptologic Museum Opened to the Public
2013: Death of Dr. Lowell K. "Jim" Frazer
1801: Patterson's "Perfect Cipher" Letter sent to Thomas Jefferson
1881: First telephone ciphony device invented by James Harris Rodgers.
1961: SP4 James Davis - first American cryptologist killed in Vietnam.
1968: "Pueblo" crew released by North Korea.
20 Dec 1969: Anniversary of the Capture of North Vietnamese Notebooks
2001: Shoe-bomber Richard Reid arrested.
1946: Meredith Gardner broke into KGB message re: Manhattan Project.
24 25 26 27 28 29 30
1928: Friedman's Coded Holiday Gram
Holiday Season Memories - NSA Building Messages
1948: Stone Board report on centralizing U.S. cryptologic organizations was issued.
1951: Brownell Committee established - led to creation of NSA.
Dec 31 Jan 1 2 3 4 5 6
1921: William Friedman at Office of the Chief Signal Officer
Friday, December 1, 2028
Thursday, December 7, 2028
Saturday, December 9, 2028
Sunday, December 10, 2028
Monday, December 11, 2028
Thursday, December 14, 2028
Friday, December 15, 2028
Saturday, December 16, 2028
Sunday, December 17, 2028
Monday, December 18, 2028
Tuesday, December 19, 2028
Wednesday, December 20, 2028
Friday, December 22, 2028
Saturday, December 23, 2028
Sunday, December 24, 2028
Monday, December 25, 2028
Wednesday, December 27, 2028
Thursday, December 28, 2028
Sunday, December 31, 2028

Learn About the Pioneers

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