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The year 1865 in science and technology involved some significant events, listed below.

Archaeology

John Lubbock publishes Pre-historic Times, as Illustrated by Ancient Remains, and the Manners and Customs of Modern Savages, including his coinage of the term Palæolithic.^[1]

Astronomy

Vassar College Observatory opens at Poughkeepsie, New York, with Maria Mitchell as its first director.

Chemistry

Friedrich Kekulé proposes a ring structure for benzene.^[2]
Adolf von Baeyer begins work on indigo dye, a milestone in modern industrial organic chemistry which revolutionizes the dye industry.^[3]
Johann Josef Loschmidt indirectly determines the number of molecules in a mole, later named the Avogadro constant.^[4]

Economics

William Stanley Jevons publishes his book The Coal Question, which will form the scientific basis for the Jevons paradox.

Life sciences

Louis Pasteur shows that the air is full of bacteria.
Joseph Lister begins to experiment with antiseptic surgery in Glasgow using carbolic acid.^[5]
Max Schultze gives the first known description of the platelet.^[6]
Claude Bernard publishes Principes de Médecine experimentale.
February 8 & March 8 – Gregor Mendel reads his paper, Versuche über Pflanzenhybriden (Experiments on Plant Hybridization), at two meetings of the Natural History Society of Brünn in Moravia.^[7]
May 17 – Father Armand David first observes Père David's Deer in China.^[8]
June–August – Francis Galton formulates eugenics.^[9]
September – John Henry Walsh (writing as 'Stonehenge' in the magazine The Field) gives the first definition of a dog breed standard (for the pointer) based on physical form.^[10]
September 28 – Elizabeth Garrett Anderson obtains a licence from the Society of Apothecaries in London to practice medicine, the first woman to qualify as a doctor in the United Kingdom,^[11] and sets up in her own practice.

Physics

Rudolf Clausius gives the first mathematical version of the concept of entropy, and also names it.^[12]^[13]
James Clerk Maxwell publishes A Dynamical Theory of the Electromagnetic Field.^[5]

Technology

Aveling and Porter produce the world's first steam roller at Rochester in England.^[14]
Hermann Sprengel produces the Sprengel pump which is capable of creating a significant vacuum.^[15]

Awards

Copley Medal: Michel Chasles^[16]
Wollaston Medal in Geology: Thomas Davidson

Births

January 22 – Friedrich Paschen (died 1947), German physicist.
February 1 – Henry Luke Bolley (died 1956), American plant pathologist.
March 19 – William Morton Wheeler (died 1937), American entomologist.
March 31 – Anandi Gopal Joshi (died 1887), Indian physician.
April 28 – Charles W. Woodworth (died 1940), American entomologist.
June 27 – John Monash (died 1931), Australian civil engineer and General.
August 10 – Charles Close (died 1952), Jersey-born cartographer.
October 12 – Arthur Harden (died 1940), English biochemist, Nobel Prize in Chemistry recipient.
November 4 – Chevalier Jackson (died 1958), American laryngologist and pioneer of endoscopy.

Deaths

January 14 – Marie-Anne Libert (born 1782), Belgian botanist.
January 31 – Hugh Falconer (born 1808), British geologist, botanist, paleontologist and paleoanthropologist.
April 23 – Diego de Argumosa (born 1792), Spanish surgeon.
April 30 – Robert FitzRoy (born 1805), English admiral and meteorologist, suicide.
May 27 – Charles Waterton (born 1782), English naturalist and explorer.
June 5 – Sir John Richardson (born 1787), Scottish-born naturalist, explorer and naval surgeon.
July 25 – Dr. James Barry (born 1789-1799), Irish-born military surgeon.
August 12 – Sir William Jackson Hooker (born 1785), English botanist.
August 13 – Ignaz Semmelweis (born 1818), Hungarian physician, following restraint in insane asylum.
August 26 – Johann Franz Encke (born 1791), German astronomer.
August 29 – Robert Remak (born 1815), Polish/Prussian Jewish embryologist.
September 2 – Sir William Rowan Hamilton (born 1805), Irish mathematician, physicist and astronomer.
October 17 – Joseph-François Malgaigne (born 1806), French surgeon.

References

^ "Palaeolithic, adj. and n.". Oxford English Dictionary online version (3rd ed.). Oxford University Press. December 2011. Archived from the original on 2012-02-26. Retrieved 2012-02-24. (subscription or participating institution membership required)
^ Kekulé, F. A. (1865). "Sur la constitution des substances aromatiques". Bulletin de la Société Chimique de Paris. 3: 98–110.
^ "Adolf von Baeyer: The Nobel Prize in Chemistry 1905". Nobel Lectures, Chemistry 1901–1921. Elsevier Publishing Company. 1966. Retrieved 2007-02-28.
^ Lienhard, John H. (2003). "Johann Josef Loschmidt". The Engines of Our Ingenuity. Episode 1858. NPR. KUHF-FM Houston. Johann Josef Loschmidt.
^ ^a ^b Everett, Jason M., ed. (2006). "1865". The People's Chronology. Thomson Gale.
^ Schultze, M. (1865). "Ein heizbarer Objecttisch und seine Verwendung bei Untersuchungen des Blutes" (PDF). Archiv für Mikroskopische Anatomie. 1: 1–42. doi:10.1007/bf02961404.
^ Moore, Randy (May 2001). "The "Rediscovery" of Mendel's Work" (PDF). Bioscene. 27. Archived from the original (PDF) on 2017-02-02. Retrieved 2016-12-06.
^ "Elaphurus davidianus". Ultimate Ungulate. 2004. Archived from the original on 5 June 2011. Retrieved 2011-05-05.
^ Galton, Francis (1865). "Hereditary talent and character" (PDF). Macmillan's Magazine. 12: 157–166, 318–327. Retrieved 2016-12-06.
^ "First modern dog discovered". University of Manchester. 2013-03-06. Retrieved 2013-03-07.
^ Apart from the woman passing herself off as Dr James Barry. Penguin Pocket On This Day. Penguin Reference Library. 2006. ISBN 0-14-102715-0.
^ Clausius, R. (1865). "Über die Wärmeleitung gasförmiger Körper". Annalen der Physik. 125: 353–400. Bibcode:1865AnP...201..353C. doi:10.1002/andp.18652010702. Archived from the original on 5 June 2011. Retrieved 26 April 2011.
^ Clausius, R. (1867). The Mechanical Theory of Heat – with its Applications to the Steam Engine and to Physical Properties of Bodies. London: John van Voorst.
^ "Aveling and Porter". Grace's Guide. Retrieved 2011-05-25.
^ Thompson, Silvanus P. (1888). The Development of the Mercurial Air-pump. London: E. & F. N. Spon. pp. 14–15. Hermann Sprengel.
^ "Copley Medal | British scientific award". Encyclopedia Britannica. Retrieved 23 July 2020.