May 6 – William Herschel coins the term asteroid[1][2] and on July 1 first uses the term binary star to refer to a star which revolves around another.[3]
Biology
Pierre André Latreille begins publication of his Histoire naturelle générale et particulière des crustacés et insectes.
Jean-Baptiste Lamarck publishes Recherches sur l'Organisation des Corps Vivants, proposing that all life is organized in a vertical chain of progressive complexity.[4]
Gottfried Reinhold Treviranus begins publication of Biologie; oder die Philosophie der lebenden Natur, proposing a theory of the transmutation of species.
Civil engineer and geographer François Antoine Rauch publishes Harmonie hydro-végétale et météorologique: ou recherches sur les moyens de recréer avec nos forêts la force des températures et la régularité des saisons par des plantations raisonnées in Paris, arguing against deforestation.
James Sowerby begins to issue his British Mineralogy, or, coloured figures intended to elucidate the mineralogy of Great Britain in London, the first comprehensive illustrated reference work on the subject.
^Herschel, William (6 May 1802). "Observations on the two lately discovered celestial Bodies". Philosophical Transactions of the Royal Society of London. 92: 213–232. doi:10.1098/rstl.1802.0010. JSTOR107120.
^"An Account of a method of copying Painting upon Glass and making profiles, by the agency of Light upon Nitrate of Silver." Invented by T. Wedgwood, Esq. with Observations by H. Davy.
^Hirsch, Robert (2017). Seizing the Light: A Social & Aesthetic History of Photography. Taylor & Francis.
^Ballbriga, Angel (1991). "One century of pediatrics in Europe". In Nichols, Buford L.; Ballabriga, A.; Kretchmer, N. (eds.). History of Pediatrics 1850–1950. Nestlé Nutrition Workshop Series. Vol. 22. New York: Raven Press. pp. 6–8. ISBN0-88167-695-0.
^Wetzels, Walter D. (1978). "J. W. Ritter: the Beginnings of Electrochemistry in Germany". In Dubpernell, G.; Westbrook, J. H. (eds.). Selected Topics in the History of Electrochemistry. Princeton: Electrochemical Society. pp. 68–73.
^Bagust, Harold (2006). The Greater Genius? – a biography of Marc Isambard Brunel. Hersham: Ian Allan. p. 31. ISBN978-0-7110-3175-3.