| Date | Text | |
|---|---|---|
21 Oct 1558
Julius Caesar Scaliger |
death Julius Caesar Scaliger Julius Caesar Scaliger, Italian-born polymath (born 1484) |
|
21 Oct 1627
Frederick de Houtman |
death Frederick de Houtman Frederick de Houtman, Dutch explorer (born 1571) |
|
21 Oct 1638
Willem Blaeu |
death Willem Blaeu Willem Blaeu, Dutch cartographer (born 1571) |
|
21 Oct 1803
John Dalton |
John Dalton (chemistry) John Dalton's atomic theory and list of molecular weights first made known, at a lecture in Manchester. |
|
21 Oct 1824
Patent |
Patent (technology) Patent issued to Joseph Aspdin for Portland cement. |
|
21 Oct 1831
Hermann Hellriegel |
birth Hermann Hellriegel Hermann Hellriegel (died 1895), German agricultural chemist who discovered the mechanism by which leguminous plants assimilate the free nitrogen of the atmosphere. |
|
21 Oct 1833
Alfred Nobel |
birth Alfred Nobel Alfred Nobel (died 1896), inventor. |
|
21 Oct 1862
Sir Benjamin Collins Brodie, 1st Baronet |
death Sir Benjamin Collins Brodie, 1st Baronet Sir Benjamin Collins Brodie, 1st Baronet (born 1783), English physiologist |
|
21 Oct 1867
Aldred Scott Warthin |
birth Aldred Scott Warthin Aldred Scott Warthin (died 1931), American cancer geneticist. |
|
21 Oct 1877
Oswald Avery |
birth Oswald Avery Oswald Avery (died 1955), Canadian American bacteriologist. |
|
21 Oct 1896
James Henry Greathead |
death James Henry Greathead James Henry Greathead (born 1844), British civil engineer. |
|
21 Oct 1907
Mauer 1 |
Mauer 1 (paleontology) Jaw of Homo heidelbergensis (Mauer 1) found. |
|
21 Oct 1908
Elsie Widdowson |
birth Elsie Widdowson Elsie Widdowson (died 2000), English nutritionist. |
|
21 Oct 1914
Martin Gardner |
birth Martin Gardner Martin Gardner (died 2010), American writer on recreational mathematics. |
|
21 Oct 1921
Victor A. McKusick |
birth Victor A. McKusick Victor A. McKusick (died 2008), American "father of genetic medicine". |
|
21 Oct 1923
planetarium |
planetarium (astronomy and space ) First official public showing of a planetarium projector, a Zeiss model at the Deutsches Museum in Munich. |
|
21 Oct 1929
Henry Ford |
Henry Ford (history of science) Henry Ford's Edison Institute is inaugurated at Dearborn, Michigan on the 50th anniversary of the invention of the incandescent light bulb, in the presence of President of the United States Herbert Hoover, Thomas Edison, Walter Chrysler, Marie Curie, George Eastman and Orville Wright (among others). |
|
21 Oct 1939
Advisory Committee on Uranium |
Advisory Committee on Uranium (physics) First meeting of the Advisory Committee on Uranium under Lyman James Briggs, authorised by President Roosevelt to oversee neutron experiments. |
|
21 Oct 1950
Ronald McNair |
birth Ronald McNair Ronald McNair (died on mission 1986), African American physicist and astronaut. |
|
21 Oct 1957
Wolfgang Ketterle |
birth Wolfgang Ketterle Wolfgang Ketterle, German winner of the Nobel Prize in Physics (2001). |
|
21 Oct 1969
Wacław Sierpiński |
death Wacław Sierpiński Wacław Sierpiński (born 1882), Polish mathematician. |
|
21 Oct 1980
Hans Asperger |
death Hans Asperger Hans Asperger (b. 1906), Austrian pediatrician. |
|
21 Oct 1983
General Conference on Weights and Measures |
General Conference on Weights and Measures (metrology) At the seventeenth General Conference on Weights and Measures, the length of a metre is redefined as the distance light travels in vacuum in 1/299,792,458 of a second. |
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