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Cryptologic Bytes

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"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 2027

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S M T W T F S
28 29 Nov 30 Dec 1 2 3 4
1887: U.S. Navy began using "The U.S. Navy Secret Code"
1932: Polish Cipher Bureau Success!
1950: ATLAS became operational.
5 6 7 8 9 10 11
1952: Pre-employment Polygraph at NSA.
Pearl Harbor Day
1992: Premiere of William Gibson's "Agrippa"
1898: Official End of Spanish-American War
1941: Germany and Italy Declared War on the U.S.
1906: Birth of Grace Hopper - computer pioneer and U.S. Navy Rear Admiral
1815: Birth of Ms. Ada Lovelace, the world's first computer programmer
12 13 14 15 16 17 18
1977: Filing for RSA Patent
1562: Death of Johannes Trithemius
1972: NSOC Inaugurated
1993: National Cryptologic Museum Opened to the Public
2013: Death of Dr. Lowell K. "Jim" Frazer
1958: First NSA Holiday Party.
Anniversary of NCM Opening to Public
19 20 21 22 23 24 25
1801: Patterson's "Perfect Cipher" Letter sent to Thomas Jefferson
1881: First telephone ciphony device invented by James Harris Rodgers.
1988: Terrorist bombing of Pan Am flight over Scotland.
1961: SP4 James Davis - first American cryptologist killed in Vietnam.
1968: "Pueblo" crew released by North Korea.
1928: Friedman's Coded Holiday Gram
Holiday Season Memories - NSA Building Messages
1946: Meredith Gardner broke into KGB message re: Manhattan Project.
2001: Shoe-bomber Richard Reid arrested.
20 Dec 1969: Anniversary of the Capture of North Vietnamese Notebooks
26 27 28 29 30 Dec 31 Jan 1
1948: Stone Board report on centralizing U.S. cryptologic organizations was issued.
1951: Brownell Committee established - led to creation of NSA.
1921: William Friedman at Office of the Chief Signal Officer
Wednesday, December 1, 2027
Monday, December 6, 2027
Tuesday, December 7, 2027
Thursday, December 9, 2027
Friday, December 10, 2027
Saturday, December 11, 2027
Tuesday, December 14, 2027
Wednesday, December 15, 2027
Thursday, December 16, 2027
Friday, December 17, 2027
Saturday, December 18, 2027
Sunday, December 19, 2027
Monday, December 20, 2027
Tuesday, December 21, 2027
Wednesday, December 22, 2027
Thursday, December 23, 2027
Friday, December 24, 2027
Saturday, December 25, 2027
Monday, December 27, 2027
Tuesday, December 28, 2027
Friday, December 31, 2027

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