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List of country calling codes Worldwide distribution of country calling codes. Regions are coloured by first digit.
The United States Naval Computing Machine Laboratory ( NCML) was a highly secret design and manufacturing site for code-breaking machinery located in Building 26 of the National Cash Register (NCR) company in Dayton, Ohio and operated by the United States Navy during World War II. It is now on the List of IEEE Milestones, [ 1] and one of its ...
Vladimir Ippolitovich Vetrov (Russian: Владимир Ипполитович Ветров; 10 October 1932 – 23 January 1985) was a high-ranking KGB spy during the Cold War who decided to covertly release valuable information to France and NATO on the Soviet Union 's clandestine program aimed at stealing technology from the West.
Allied military phonetic spelling alphabets NATO Phonetic And Morse Code Alphabet, from the US Navy Signalman 3 & 2 training manual, 1996. This table combines the ICAO international spelling alphabet and the ITU International Morse Code.
The Enigma machine is a cipher device developed and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. It was employed extensively by Nazi Germany during World War II, in all branches of the German military. The Enigma machine was considered so secure that it was used to encipher the most top ...
An airline ticket showing the price with ISO 4217 code " EUR " (bottom left) and not with euro currency sign " € ". ISO 4217 is a standard published by the International Organization for Standardization (ISO) that defines alpha codes and numeric codes for the representation of currencies and provides information about the relationships ...
John Davison Rockefeller Sr. (July 8, 1839 – May 23, 1937) was an American business magnate and philanthropist. He was one of the wealthiest Americans of all time [1][2][3][4] and one of the richest people in modern history. [5][6][3] Rockefeller was born into a large family in Upstate New York who moved several times before eventually settling in Cleveland, Ohio. He became an assistant ...
Bletchley Park is an English country house and estate in Bletchley, Milton Keynes (Buckinghamshire), that became the principal centre of Allied code-breaking during the Second World War. The mansion was constructed during the years following 1883 for the financier and politician Herbert Leon in the Victorian Gothic, Tudor and Dutch Baroque styles, on the site of older buildings of the same name.