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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 2029

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S M T W T F S
25 26 27 28 29 Nov 30 Dec 1
1887: U.S. Navy began using "The U.S. Navy Secret Code"
1932: Polish Cipher Bureau Success!
1950: ATLAS became operational.
2 3 4 5 6 7 8
Pearl Harbor Day
9 10 11 12 13 14 15
1992: Premiere of William Gibson's "Agrippa"
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
1906: Birth of Grace Hopper - computer pioneer and U.S. Navy Rear Admiral
1958: First NSA Holiday Party.
16 17 18 19 20 21 22
1972: NSOC Inaugurated
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.
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.
23 24 25 26 27 28 29
1968: "Pueblo" crew released by North Korea.
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.
30 Dec 31 Jan 1 2 3 4 5
1921: William Friedman at Office of the Chief Signal Officer
Saturday, December 1, 2029
Friday, December 7, 2029
Sunday, December 9, 2029
Monday, December 10, 2029
Tuesday, December 11, 2029
Friday, December 14, 2029
Saturday, December 15, 2029
Sunday, December 16, 2029
Monday, December 17, 2029
Tuesday, December 18, 2029
Wednesday, December 19, 2029
Thursday, December 20, 2029
Saturday, December 22, 2029
Sunday, December 23, 2029
Monday, December 24, 2029
Tuesday, December 25, 2029
Thursday, December 27, 2029
Friday, December 28, 2029
Monday, December 31, 2029

Learn About the Pioneers

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