Template:Selected anniversaries/April 3: Difference between revisions
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||1902: Reinhard Gehlen born ... German general who was chief of the Wehrmacht Foreign Armies East (FHO) military-intelligence unit, during World War II (1942–45); spymaster of the anti–Communist Gehlen Organization for the United States (1946–56); and the first president (1956–68) of the Federal Intelligence Service (Bundesnachrichtendienst, BND) of West Germany, during the Cold War. Pic. | ||1902: Reinhard Gehlen born ... German general who was chief of the Wehrmacht Foreign Armies East (FHO) military-intelligence unit, during World War II (1942–45); spymaster of the anti–Communist Gehlen Organization for the United States (1946–56); and the first president (1956–68) of the Federal Intelligence Service (Bundesnachrichtendienst, BND) of West Germany, during the Cold War. Pic. | ||
File:Solomon Kullback.jpg|link=Solomon Kullback (nonfiction)|1907: Cryptanalyst and mathematician [[Solomon Kullback (nonfiction)|Solomon Kullback]] born. Krullback will begin his career with the US Army's Signal Intelligence Service (SIS) in the 1930s; when the National Security Agency (NSA) is formed in 1952, Rowlett will become chief of cryptanalysis, overseeing the research and development of computerized cryptanalysis. | File:Solomon Kullback.jpg|link=Solomon Kullback (nonfiction)|1907: Cryptanalyst and mathematician [[Solomon Kullback (nonfiction)|Solomon Kullback]] born. Krullback will begin his career with the US Army's Signal Intelligence Service (SIS) in the 1930s; when the National Security Agency (NSA) is formed in 1952, Rowlett will become chief of cryptanalysis, overseeing the research and development of computerized cryptanalysis. | ||
||1910: Richard Wilhelm Heinrich Abegg dies ... chemist and pioneer of valence theory. He proposed that the difference of the maximum positive and negative valence of an element tends to be eight. This has come to be known as Abegg's rule. Pic. | ||1910: Richard Wilhelm Heinrich Abegg dies ... chemist and pioneer of valence theory. He proposed that the difference of the maximum positive and negative valence of an element tends to be eight. This has come to be known as Abegg's rule. Pic. | ||
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||2016: The Panama Papers, a leak of legal documents, reveals information on 214,488 offshore companies. | ||2016: The Panama Papers, a leak of legal documents, reveals information on 214,488 offshore companies. | ||
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Revision as of 20:52, 26 January 2022
1693: Carpenter and clockmaker John Harrison born. He will invent a marine chronometer, a long-sought-after device for solving the problem of calculating longitude while at sea.
1718: Mathematician Jacques Ozanam dies. Ozanam's Récréations mathématiques et physiques (1694) was later translated into English and is well known today.
1827: Physicist, musician, and academic Ernst Chladni dies. He has been called both the father of acoustics and the father of meteoritics.
1907: Cryptanalyst and mathematician Solomon Kullback born. Krullback will begin his career with the US Army's Signal Intelligence Service (SIS) in the 1930s; when the National Security Agency (NSA) is formed in 1952, Rowlett will become chief of cryptanalysis, overseeing the research and development of computerized cryptanalysis.
1995: Mathematician and checkers player Marion Tinsley dies. Tinsley was "to checkers what Leonardo da Vinci was to science, what Michelangelo was to art and what Beethoven was to music."
1998: Mathematician and academic Mary Cartwright dies. She did pioneering work in chaos theory.