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Srinivasa Ramanujan Aiyangar[ a ] (22 December 1887 – 26 April 1920) was an Indian mathematician. Though he had almost no formal training in pure mathematics, he made substantial contributions to mathematical analysis, number theory, infinite series, and continued fractions, including solutions to mathematical problems then considered unsolvable.
1625 – King Charles I of England marries Catholic princess Henrietta Maria of France and Navarre, at Canterbury. [6]1740 – Georgia provincial governor James Oglethorpe begins an unsuccessful attempt to take Spanish Florida during the Siege of St. Augustine.
Khaled Mohammed Khaled (/ ˈ k æ l ɪ d /; born November 26, 1975), [3] known professionally as DJ Khaled, is an American DJ, record producer, and record executive.Originally a Miami-based radio hype man, Khaled has become known for his extensive curation of high-profile music industry artists and producers to record singles or albums.
2001 - AbioCor self contained artificial heart created. July 3: 1672 - Death of Francis Willughby, English biologist (b. 1635) 1749 - Death of William Jones, Welsh mathematician (b. 1675) 1790 - Death of Jean-Baptiste L. Romé de l'Isle, French chemist (b. 1736) 1844 - The last pair of Great Auks is killed.
Pi Approximation Day is observed on July 22 (22/7 in the day/month date format), since the fraction 22 ⁄ 7 is a common approximation of π, which is accurate to two decimal places and dates from Archimedes. [33] In Indonesia, a country that uses the DD/MM/YYYY date format, some people celebrate Pi Day every July 22. [34]
Gottfried Wilhelm Leibniz or Leibnitz [a] (1 July 1646 [O.S. 21 June] – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientist and diplomat who is disputed with Sir Isaac Newton to have invented calculus in addition to many other branches of mathematics, such as binary arithmetic, and statistics.
—Malcolm X When Malcolm was in prison, he met fellow convict John Bembry, a self-educated man he would later describe as "the first man I had ever seen command total respect... with words". Under Bembry's influence, Malcolm developed a voracious appetite for reading. At this time, several of his siblings wrote to him about the Nation of Islam, a relatively new religious movement preaching ...
Roger Bacon was born in Ilchester in Somerset, England, in the early 13th century.His birth is sometimes narrowed down to 1210, [8] 1213 or 1214, [9] 1215 [10] or 1220. [11] The only source for his birth date is a statement from his 1267 Opus Tertium that "forty years have passed since I first learned the Alphabetum ". [12]