The Big Trees Ranch at Felton, California, is bought by San Francisco businessman Joseph Warren Welch to preserve the giant redwoods (Sequoia sempervirens) from logging.[5]
English mathematician Rev. William Allen Whitworth publishes the first edition of his Choice and Chance: An Elementary Treatise on Permutations, Combinations, and Probability.
December 22 – Jean-Victor Poncelet (died 1788), French mechanical and military engineer and mathematician.
Referencesedit
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^Honegger, R. (2000). "Simon Schwender (1829–1919) and the dual hypothesis in lichens". Bryologist. 103 (2): 307–13. doi:10.1639/0007-2745(2000)103[0307:SSATDH]2.0.CO;2. ISSN 0007-2745. JSTOR 3244159. S2CID 84580224.
^"La France: Hybrid Tea Rose". Rosegathering. 2005. Archived from the original on 2009-05-22. Retrieved 2011-08-17.
^"Rancho Cañada del Rincon en el Rio San Lorenzo". Henry Cowell Redwoods State Park. California Department of Parks and Recreation. Retrieved 2012-10-01.
^Rawlinson, Henry C. (18 May 1867). "The Assyrian Canon Verified by the Record of a Solar Eclipse, B.C. 763". The Athenaeum (2064). London: 660–1.
^Stewart, Matthew (2003). Monturiol's Dream: The Extraordinary Story of the Submarine Inventor Who Wanted to Save the World. London: Profile Books. p. 312. ISBN 978-1-86197-470-9.
^"Copley Medal | British scientific award". Encyclopædia Britannica. Retrieved 23 July 2020.
^Arias, Ingrid (2006). Im Dienste der Volksgesundheit: Frauen – Gesundheitswesen – Nationalsozialismus [In the Service of Public Health: Women, Healthcare, Nazism] (in German). Vienna: Verlagshaus der Ärzte. p. 87. ISBN 978-3-90148-886-3.
^Clifton J., Philips (1971). "Fearn, Anne Walter". In James, Edward T. (ed.). Notable American Women, 1607-1950: A Biographical Dictionary. Vol. 1. p. 603. ISBN 978-0-67462-734-5.
^"BBC – History – Marie Curie". www.bbc.co.uk. Retrieved 20 January 2020.