Jan Śniadecki (29 August 1756 – 9 November 1830) was a Polish mathematician, philosopher, and astronomer at the turn of the 18th and 19th centuries. Life Born in Żnin, Śniadecki studied at Kraków Jagellonian University and in Paris. He was rector of the Imperial University of Vilnius, a member of the Commission of National Education, and director of astronomical observatories at Kraków () and Vilnius. He died at Jašiūnai Manor near Vilnius. Śniadecki published many works, including his observations on recently discovered planetoids. His O rachunku losów (On the Calculation of Chance, 1817) was a work in probability. He was brother to Jędrzej Śniadecki. Honours The lunar crater Sniadecki and the main-belt asteroid 1262 Sniadeckia were named in his honour. Works "Rachunku algebraicznego teoria" (1783) "Geografia, czyli opisanie matematyczne i fizyczne ziemi" (1804) "Rozprawa o Koperniku" (Discourse on Nicolaus Copernicus, biography, 1802) "O rachunku losów" (1817) "Trygonometria kulista analitycznie wyłożona" (1817) "O pismach klasycznych i romantycznych", Dziennik Wileński (1819) "Filozofia umysłu ludzkiego" (1821) See also History of philosophy in Poland List of Poles References Władysław Tatarkiewicz, Historia filozofii (History of Philosophy), 3 vols., Warsaw, Państwowe Wydawnictwo Naukowe, 1978. External links Works by Jan Śniadecki in digital library Polona 1756 births 1830 deaths 19th-century Polish astronomers Lithuanian astronomers 18th-century Polish–Lithuanian mathematicians 19th-century Polish mathematicians 18th-century Polish–Lithuanian philosophers 19th-century Polish philosophers Enlightenment philosophers Rectors of Vilnius University People from Żnin County 18th-century Polish–Lithuanian astronomers