MATHEMATICIAN

Spiru Haret

1851 - 1912

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Spiru C. Haret (Romanian pronunciation: [ˈspiru haˈret]; 15 February 1851 – 17 December 1912) was a Romanian mathematician, astronomer, and politician. He made a fundamental contribution to the n-body problem in celestial mechanics by proving that using a third degree approximation for the disturbing forces implies instability of the major axes of the orbits, and by introducing the concept of secular perturbations in relation to this. As a politician, during his three terms as Minister of Education, Haret ran deep reforms, building the modern Romanian education system. He was made a full member of the Romanian Academy in 1892. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Spiru Haret is the 774th most popular mathematician (down from 752nd in 2019), the 378th most popular biography from Romania (down from 377th in 2019) and the 7th most popular Romanian Mathematician.

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Among MATHEMATICIANS

Among mathematicians, Spiru Haret ranks 774 out of 1,004. Before him are Hassler Whitney, John Lennox, Paul Montel, Hans Lewy, Francesco Brioschi, and Sergey Mergelyan. After him are Christoph Gudermann, Jacques-Louis Lions, Grace Chisholm Young, Leo Königsberger, Kenkichi Iwasawa, and E. T. Whittaker.

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Contemporaries

Among people born in 1851, Spiru Haret ranks 88. Before him are Nikolai Iudovich Ivanov, Carl Gustav Axel Harnack, Carl Locher, Bedros Tourian, Spyridon Lambros, and Andrea Costa. After him are Thérèse Schwartze, Friedrich von Scholtz, Abraham Berge, Rainer Ludwig Claisen, Eduardo Acevedo Díaz, and Juan Gualberto González. Among people deceased in 1912, Spiru Haret ranks 112. Before him are Henri Bouckaert, Patricio Escobar, Pencho Slaveykov, Iakob Gogebashvili, Heinrich Gerber, and Lawrence Oates. After him are Anton Aškerc, Ahmet Mithat, Aleksey Suvorin, Alexander Duff, 1st Duke of Fife, Ludvig Holstein-Ledreborg, and Richard Andree.

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In Romania

Among people born in Romania, Spiru Haret ranks 378 out of 844. Before him are Pavel Badea (1967), Mircea Rednic (1962), Valeriu Bularca (1931), Vintilă Brătianu (1867), Alexandru Borbely (1910), and Doina Cornea (1929). After him are Corneliu Mănescu (1916), Marin Sorescu (1936), Adalbert Steiner (1907), Take Ionescu (1858), László Lukács (1850), and Oskar Pastior (1927).

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Among MATHEMATICIANS In Romania

Among mathematicians born in Romania, Spiru Haret ranks 7. Before him are János Bolyai (1802), Zoia Ceaușescu (1949), Farkas Bolyai (1775), Abraham Wald (1902), Ion Ghica (1816), and Ion Barbu (1895). After him are George Lusztig (1946), Grigore Moisil (1906), and Solomon Marcus (1925).

Romanian born Mathematicians

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