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CCH CALENDAR

The Center for Cryptologic History (CCH) publishes a calendar each year which highlights cryptologic events from the past.  The calendar and events for the current month are provided below:

1st

1887 US Navy began using “The US Navy Secret Code”
1932 Polish BUIRO SZYFROW first solved ENIGMA message
1950 ATLAS operational, first U.S> cryptologic computer
1958 First NSA holiday party


6th
1952 Pre-employment polygraph became mandatory at NSA


7th
1941 Japanese attacked Pearl Harbor in Hawaii


11th
1917 AEF Radio Intelligence Section opened intercept site at Souilly, France


12th
1971 Navy C2A lost


14th
1914 Battle of Dogger Bank, British cryptologic failure
1977 Three MIT researchers filed for a patent for what came to be known as the RSA public-key encryption algorithm


15th
1562 Death of Johannes Trithemius, identified as first author of book on cryptography published in France


16th
1972 NSOC inaugurated in 1972, the offical ribbon cutting ceremony was held in February 1973


17th
1993 National Cryptologic Museum opened to the public


20th
1881 First telephone ciphony device invented by James Harris Rodgers, chief electrician of the US Capital
1946 Meredith Gardner broke into KGB message containing list of scientists working on Manhattan Project


22nd
1961 SP4 James Davis, became first American soldier killed in Vietnam


23rd
1968 Pueblo crew released


27th
1948 Stone Board report on centralizing U.S. cryptologic organizations issued


28th
1951 Brownell Committee established – led to creation of NSA


30th
1965 Frank Rowlett, pioneer cryptologist, retires from NSA