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Science on the 21st of February in history

Science

Date	Type	Text
21 Feb 1554 Hieronymus Bock	science	death Hieronymus Bock Hieronymus Bock, German botanist (born 1498)	0
21 Feb 1556 Sethus Calvisius	science	birth Sethus Calvisius Sethus Calvisius, German musician and astronomer (died 1615)	0
21 Feb 1591 Gérard Desargues	science	birth Gérard Desargues Gérard Desargues, French geometer (died 1661)	0
21 Feb 1775 La Specola	science	La Specola (natural history) La Specola, Florence's Museum of Zoology and Natural History, opens to the public.	0
21 Feb 1804 Cornishman	science	Cornishman (technology) The Cornishman Richard Trevithick's newly built "Penydarren" steam locomotive operates on the Merthyr Tramroad between Penydarren Ironworks in Merthyr Tydfil and Abercynon in South Wales, following several trials since February 13, the world's first locomotive to work on rails.	0
21 Feb 1809 Carl Ernst Bock	science	birth Carl Ernst Bock Carl Ernst Bock (died 1874), physician and anatomist.	0
21 Feb 1842 John Greenough	science	John Greenough (technology) John Greenough is granted the first U.S. patent for the sewing machine.	0
21 Feb 1918 Carolina Parakeet	science	Carolina Parakeet (biology) The last known Carolina Parakeet (the only parrot species native to the eastern United States) dies in Cincinnati Zoo.	0
21 Feb 1941 Frederick Banting	science	death Frederick Banting Sir Frederick Banting (born 1891), Canadian discoverer of insulin, winner of the Nobel Prize in Physiology or Medicine (1923) (military aircraft accident)	0
21 Feb 1947 Edwin H. Land	science	Edwin H. Land (technology) Edwin H. Land demonstrates the first practical instant camera, the Land Camera, in New York. It will first be on commercial sale in December 1948.	0
21 Feb 1972 Soviet	science	Soviet (astronomy and space ) The Soviet unmanned spacecraft Luna 20 lands on the Moon.	0
21 Feb 1984 Anna Baetjer	science	death Anna Baetjer Anna Baetjer (b. 1899), American toxicologist.	0
21 Feb 1993 Inge Lehmann	science	death Inge Lehmann Inge Lehmann, Danish seismologist (b. 1888)	0
21 Feb 1999 Gertrude B. Elion	science	death Gertrude B. Elion Gertrude B. Elion (b. 1918), American pharmacologist, Nobel laureate in Physiology or Medicine.	0

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