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. Read more on Wikipedia

Since 2007, the English Wikipedia page of Spiru Haret has received more than 79,086 page views. His biography is available in 16 different languages on Wikipedia. Spiru Haret is the 752nd most popular mathematician (down from 666th in 2019), the 377th most popular biography from Romania (down from 318th in 2019) and the 7th most popular Romanian Mathematician.

Memorability Metrics

  • 79k

    Page Views (PV)

  • 47.63

    Historical Popularity Index (HPI)

  • 16

    Languages Editions (L)

  • 2.35

    Effective Languages (L*)

  • 2.98

    Coefficient of Variation (CV)

Among MATHEMATICIANS

Among mathematicians, Spiru Haret ranks 752 out of 1,004. Before him are Ludwig Schlesinger, Charles Fefferman, Alexander Ostrowski, Leo Königsberger, Victor Puiseux, and Anatoly Maltsev. After him are Gladys West, Kenkichi Iwasawa, Giuseppe Vitali, Joseph-Alfred Serret, Solomon W. Golomb, and Vladimir Levenshtein.

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Contemporaries

Among people born in 1851, Spiru Haret ranks 84. Before him are Carl Locher, Gennaro Granito Pignatelli di Belmonte, Bedros Tourian, Frans Schollaert, Maksim Kovalevsky, and Guillermo Billinghurst. After him are William Mitchell Ramsay, Karl Moritz Schumann, Ekaterine Gabashvili, William Quan Judge, Rainer Ludwig Claisen, and Walter Reed. Among people deceased in 1912, Spiru Haret ranks 112. Before him are Ahmet Mithat, Ferdinand Zirkel, Aleksey Suvorin, Ferdinand Monoyer, Patricio Escobar, and Ludvig Holstein-Ledreborg. After him are Eduardo López de Romaña, Alexander Duff, 1st Duke of Fife, Henri Bouckaert, Anton Aškerc, Richard Andree, and Juan Gualberto González.

Others Born in 1851

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Others Deceased in 1912

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In Romania

Among people born in Romania, Spiru Haret ranks 377 out of 844. Before him are Crin Antonescu (1959), Marin Sorescu (1936), Cornel Penu (1946), Rudolf Bürger (1908), Mordehai Milgrom (1946), and Dimitrie Brătianu (1818). After him are Iosif Czako (1906), Gheorghe Berceanu (1949), Adrian Ilie (1974), Constantin Angelescu (1869), Florea Dumitrache (1948), and Dezső Bánffy (1843).

Others born in Romania

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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 Grigore Moisil (1906), Solomon Marcus (1925), and George Lusztig (1946).

Romanian born Mathematicians

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