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December 13 (20:45:52) – Retrospectively, this becomes the earliest date representable with a signed 32-bit integer on digital computer systems that reference time in seconds since the Unix epoch.
September 25 – Establishment of Deutsche Gesellschaft für Geschichte der Medizin und der Naturwissenschaften, the world's first history of science society.[3]
December 12 – Marconi receives the first trans-Atlantic radio signal, sent from Poldhu in Cornwall, England, to Newfoundland, the letter "S" in Morse.[9]
Ivan Yarkovsky describes the Yarkovsky effect, a thermal force acting on rotating bodies in space, in a pamphlet on "The density of light ether and the resistance it offers to motion" published in Bryansk.[12]
Scottish military doctor William Boog Leishman identifies organisms from the spleen of a patient who had died from "Dum Dum fever" (later known as leishmaniasis) and proposes them to be trypanosomes, found for the first time in India.[18]
July 10 – The world's first passenger-carrying trolleybus in regular service operates on the Biela Valley Trolleybus route at Koeninggstein in Germany, pioneering Max Schiemann's under-running trolley current collection system.[19]
^Parshall, K. H. (1991). "A study in group theory: Leonard Eugene Dickson's Linear groups". Mathematical Intelligencer. 13: 7–11. doi:10.1007/bf03024065.
^Crilly, Tony (2007). 50 Mathematical Ideas you really need to know. London: Quercus. p. 141. ISBN978-1-84724-008-8.
^Stanier, Peter (2010). Cornwall's Industrial Heritage. Chacewater: Twelveheads. p. 14. ISBN978-0-906294-57-4.
^Bussey, Gordon (2000). Marconi's Atlantic Leap. Coventry: Marconi. ISBN0-9538967-0-6.
^Todes, Daniel Philip (2002). Pavlov's Physiology Factory. Baltimore: Johns Hopkins University Press. pp. 232 et seq. ISBN0-8018-6690-1.
^Schollmeyer, Thoralf; et al. (November 2007). "Georg Kelling (1866-1945): the root of modern day minimal invasive surgery. A forgotten legend?". Archives of Gynecology and Obstetrics. 276 (5): 505–9. doi:10.1007/s00404-007-0372-y. PMID17458553.
^Porter, Roy (1997). The Greatest Benefit to Mankind: a medical history of humanity from antiquity to the present. London: HarperCollins. p. 474. ISBN0-00-215173-1.
^Leishman, W. B. (1903). "On the possibility of the occurrence of trypanomiasis in India". The British Medical Journal.
^Dittmann, Frank (1991). "Die gleislose Bielatalbahn". Sächsische Heimatblätter (3): 177–180. ISSN0486-8234.
^Penguin Pocket On This Day. Penguin Reference Library. 2006. ISBN0-14-102715-0.