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Stefan Mayer
Colonel Stefan A. Mayer (1895 — 23 March 1981, London) was a Polish military intelligence officer and prewar chief of Counterintelligence within the Polish General Staff's Section II (''Oddział II''). In that capacity, he supervised the General Staff's Cipher Bureau, whose achievements included the breaking of German Enigma-machine ciphers. Career In January 1938Kozaczuk, see references. Mayer — cryptologist Marian Rejewski was to recall — "directed that statistics be compiled for a two-week estperiod, comparing the uantities of Enigma-messagematerial solved, with the uantities ofEnigma-enciphered material intercepted by the radiotelegraphers. The ratio came to 75 percent.... With slightly augmented personnel, we might have attained about 90 percent..." Mayer would recall in 1974 that, before World War II, Colonel Tadeusz Pełczyński, chief of the Polish General Staff's Section II, suggested to the chief of the General Staff, General Wacław Stachiewicz, that in case ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stefan Mayer
Colonel Stefan A. Mayer (1895 — 23 March 1981, London) was a Polish military intelligence officer and prewar chief of Counterintelligence within the Polish General Staff's Section II (''Oddział II''). In that capacity, he supervised the General Staff's Cipher Bureau, whose achievements included the breaking of German Enigma-machine ciphers. Career In January 1938Kozaczuk, see references. Mayer — cryptologist Marian Rejewski was to recall — "directed that statistics be compiled for a two-week estperiod, comparing the uantities of Enigma-messagematerial solved, with the uantities ofEnigma-enciphered material intercepted by the radiotelegraphers. The ratio came to 75 percent.... With slightly augmented personnel, we might have attained about 90 percent..." Mayer would recall in 1974 that, before World War II, Colonel Tadeusz Pełczyński, chief of the Polish General Staff's Section II, suggested to the chief of the General Staff, General Wacław Stachiewicz, that in case ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called the capital of the world. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the region France's primate city. The Paris Region had a GDP of €739 billion ($743 billion) in 2019, which is the highest in Europe. According to the Economist Intelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1981 Deaths
Events January * January 1 ** Greece enters the European Economic Community, predecessor of the European Union. ** Palau becomes a self-governing territory. * January 10 – Salvadoran Civil War: The Farabundo Martí National Liberation Front, FMLN launches its first major offensive, gaining control of most of Morazán Department, Morazán and Chalatenango Department, Chalatenango departments. * January 15 – Pope John Paul II receives a delegation led by Polish Solidarity (Polish trade union), Solidarity leader Lech Wałęsa at the Vatican City, Vatican. * January 20 – Iran releases the 52 Americans held for 444 days, minutes after Ronald Reagan is First inauguration of Ronald Reagan, sworn in as the 40th President of the United States, ending the Iran hostage crisis. * January 21 – The first DMC DeLorean, DeLorean automobile, a stainless steel sports car with gull-wing doors, rolls off the production line in Dunmurry, Northern Ireland. * January 24 – An 1981 Dawu ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1895 Births
Events January–March * January 5 – Dreyfus affair: French officer Alfred Dreyfus is stripped of his army rank, and sentenced to life imprisonment on Devil's Island. * January 12 – The National Trust for Places of Historic Interest or Natural Beauty is founded in England by Octavia Hill, Robert Hunter and Canon Hardwicke Rawnsley. * January 13 – First Italo-Ethiopian War: Battle of Coatit – Italian forces defeat the Ethiopians. * January 17 – Félix Faure is elected President of the French Republic, after the resignation of Jean Casimir-Perier. * February 9 – Mintonette, later known as volleyball, is created by William G. Morgan at Holyoke, Massachusetts. * February 11 – The lowest ever UK temperature of is recorded at Braemar, in Aberdeenshire. This record is equalled in 1982, and again in 1995. * February 14 – Oscar Wilde's last play, the comedy ''The Importance of Being Earnest'', is first shown at St Jam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christopher Kasparek
Christopher Kasparek (born 1945) is a Scottish-born writer of Polish descent who has translated works by numerous authors, including Ignacy Krasicki, Bolesław Prus, Florian Znaniecki, Władysław Tatarkiewicz, Marian Rejewski, and Władysław Kozaczuk, as well as the Polish–Lithuanian Constitution of 3 May 1791. He has published papers on the history of the World War II era; Enigma decryption; Bolesław Prus and his novel ''Pharaoh''; the theory and practice of translation; logology (science of science); multiple independent discovery; psychiatric nosology; and electronic health records. Life Born in Edinburgh, Scotland, to Józef and Stanisława (SylviaAcknowledgements in [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Władysław Kozaczuk
Władysław Kozaczuk (23 December 1923 – 26 September 2003) was a Polish Army colonel and a military and intelligence historian. Life Born in the village of Babiki near Sokółka, Kozaczuk joined the army in 1944, during World War II, at Białystok. In 1945 he became a Polish Army second lieutenant, and spent the first 5 years of his service commanding operational units of the Internal Security Corps, fighting the Polish anticommunist underground and then the Ukrainian Insurgent Army. In 1950 he was transferred to the Internal Security Corps Staff in Warsaw. In 1954–55, following the Korean War, Kozaczuk carried out armistice-related duties in Korea. In 1955–58 he served in the Polish Ministry of Internal Affairs ('). In 1957–58 he saw duty with the International Control Commission in Vietnam. In 1958–69 he served in Polish military counter-intelligence (''Wojskowa Służba Wewnętrzna''). According to his family, he found conditions there uncongenial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Poles
This is a partial list of notable Polish or Polish-speaking or -writing people. People of partial Polish heritage have their respective ancestries credited. Science Physics * Czesław Białobrzeski * Andrzej Buras * Georges Charpak, 1995 Nobel Prize * Jan Kazimierz Danysz * Marian Danysz * Tomasz Dietl * Maria Dworzecka * Artur Ekert, one of the independent inventors (in 1991) of quantum cryptography * Marek Gazdzicki * Ryszard Horodecki * Leopold Infeld * Aleksander Jabłoński * Jerzy Stanisław Janicki * Sylwester Kaliski * Elżbieta Kossecka * Jan Eugeniusz Krysiński * Stanislas Leibler * Maciej Lewenstein * Olga Malinkiewicz * Albert A. Michelson, 1907 Nobel Prize * Lidia Morawska * Stanisław Mrozowski * Władysław Natanson * Witold Nazarewicz * Henryk Niewodniczański * Georges Nomarski * Karol Olszewski * Jerzy Plebański * Jerzy Pniewski * Nikodem Popławski * Sylwester Porowski, blue laser * Józef Rotblat, 1995 Nobel Peace Prize * Stefan Rozent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Polish Intelligence Services
This article covers the history of Polish Intelligence services dating back to the Polish–Lithuanian Commonwealth. Commonwealth Though the first official Polish government service entrusted with espionage, intelligence and counter-intelligence was not formed until 1918, Kingdom of Poland and later the Polish–Lithuanian Commonwealth had developed networks of informants in neighbouring countries. Envoys and ambassadors had also gathered intelligence, often using bribery. Such agents included the 17th-century Polish poet Jan Andrzej Morsztyn. Polish kings and Polish–Lithuanian military commanders (''hetmans'') such as Stanisław Koniecpolski maintained intelligence networks. The ''hetmans'' were responsible for intelligence-gathering in the Ottoman Empire, its vassal states and disputed territories such as Wallachia, Moldavia and Transylvania. Intelligence networks also operated in Muscovy and among the restless Cossacks. In 1683, during the Battle of Vienna, the Polish me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotland
Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to the north and west, the North Sea to the northeast and east, and the Irish Sea to the south. It also contains more than 790 islands, principally in the archipelagos of the Hebrides and the Northern Isles. Most of the population, including the capital Edinburgh, is concentrated in the Central Belt—the plain between the Scottish Highlands and the Southern Uplands—in the Scottish Lowlands. Scotland is divided into 32 administrative subdivisions or local authorities, known as council areas. Glasgow City is the largest council area in terms of population, with Highland being the largest in terms of area. Limited self-governing power, covering matters such as education, social services and roads and transportation, is devolved from the Scott ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glasgow
Glasgow ( ; sco, Glesca or ; gd, Glaschu ) is the most populous city in Scotland and the fourth-most populous city in the United Kingdom, as well as being the 27th largest city by population in Europe. In 2020, it had an estimated population of 635,640. Straddling the border between historic Lanarkshire and Renfrewshire, the city now forms the Glasgow City Council area, one of the 32 council areas of Scotland, and is governed by Glasgow City Council. It is situated on the River Clyde in the country's West Central Lowlands. Glasgow has the largest economy in Scotland and the third-highest GDP per capita of any city in the UK. Glasgow's major cultural institutions – the Burrell Collection, Kelvingrove Art Gallery and Museum, the Royal Conservatoire of Scotland, the Royal Scottish National Orchestra, Scottish Ballet and Scottish Opera – enjoy international reputations. The city was the European Capital of Culture in 1990 and is notable for its architecture, cult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayswater
Bayswater is an area within the City of Westminster in West London. It is a built-up district with a population density of 17,500 per square kilometre, and is located between Kensington Gardens to the south, Paddington to the north-east, and Notting Hill to the west. Much of Bayswater was built in the 1800s, and consists of streets and garden squares lined with Victorian stucco terraces; some of which have been subdivided into flats. Other key developments include the Grade II listed 650-flat Hallfield Estate, designed by Sir Denys Lasdun, and Queensway and Westbourne Grove, its busiest high streets, with a mix of independent, boutique and chain retailers and restaurants. Bayswater is also one of London's most cosmopolitan areas: a diverse local population is augmented by a high concentration of hotels. In addition to the English, there are many other nationalities. Notable ethnic groups include Greeks, French, Americans, Brazilians, Italians, Irish, Arabs, Malaysian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decryption
In cryptography, encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Ideally, only authorized parties can decipher a ciphertext back to plaintext and access the original information. Encryption does not itself prevent interference but denies the intelligible content to a would-be interceptor. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. It is possible to decrypt the message without possessing the key but, for a well-designed encryption scheme, considerable computational resources and skills are required. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients but not to unauthorized users. Historically, various forms of encryption have been used to aid in cryptography. Early encryption techniques were often used in military ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
