Christopher Clavius

1538 - 1612

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Christopher Clavius (25 March 1538 – 6 February 1612) was a Jesuit German mathematician, head of mathematicians at the Collegio Romano, and astronomer who was a member of the Vatican commission that accepted the proposed calendar invented by Aloysius Lilius, that is known as Gregorian calendar. Clavius would later write defences and an explanation of the reformed calendar, including an emphatic acknowledgement of Lilius' work. Read more on Wikipedia

Since 2007, the English Wikipedia page of Christopher Clavius has received more than 136,002 page views. His biography is available in 34 different languages on Wikipedia. Christopher Clavius is the 103rd most popular mathematician (down from 93rd in 2019), the 557th most popular biography from Germany (down from 12th in 2019) and the 16th most popular German Mathematician.

Christopher Clavius is most famous for his work on the Gregorian calendar.

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Among mathematicians, Christopher Clavius ranks 103 out of 828Before him are Alexander Grothendieck, Josef Stefan, Carl Gustav Jacob Jacobi, Leopold Kronecker, Stefan Banach, and Thomas Harriot. After him are John Couch Adams, Jean-Victor Poncelet, Meton of Athens, Edward Norton Lorenz, Hippocrates of Chios, and Lodovico Ferrari.

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Among people born in 1538, Christopher Clavius ranks 2Before him is Charles Borromeo. After him are Caesar Baronius, Guglielmo Gonzaga, Duke of Mantua, Maeda Toshiie, Giovanni Battista Guarini, Louis of Nassau, Turibius of Mogrovejo, Hōjō Ujimasa, Infanta Maria of Guimarães, and Ashikaga Yoshihide. Among people deceased in 1612, Christopher Clavius ranks 5Before him are Rudolf II, Holy Roman Emperor, Vasili IV of Russia, Giovanni Gabrieli, and Sasaki Kojirō. After him are Vincenzo Gonzaga, Duke of Mantua, Federico Barocci, Anne Catherine of Brandenburg, Henry Frederick, Prince of Wales, Karin Månsdotter, Hans Leo Hassler, and Francesco IV Gonzaga, Duke of Mantua.

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In Germany

Among people born in Germany, Christopher Clavius ranks 557 out of 5,289Before him are Pope Damasus II (1000), Otto Günsche (1917), Dietrich Eckart (1868), Caroline Augusta of Bavaria (1792), Hans-Joachim Marseille (1919), and Wolfgang Petersen (1941). After him are Georg Elser (1903), Hans Spemann (1869), Adam of Bremen (null), Felix Hoffmann (1868), Johann Adolph Hasse (1699), and Sophia of Nassau (1836).


Among mathematicians born in Germany, Christopher Clavius ranks 16Before him are Friedrich Bessel (1784), Richard Dedekind (1831), Regiomontanus (1436), Felix Klein (1849), Alexander Grothendieck (1928), and Carl Gustav Jacob Jacobi (1804). After him are Ferdinand von Lindemann (1852), Hermann Weyl (1885), Johannes Trithemius (1462), Robert Aumann (1930), Hermann of Reichenau (1013), and Ernst Zermelo (1871).