Wilhelm Schickard

1592 - 1635

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Wilhelm Schickard (22 April 1592 – 24 October 1635) was a German professor of Hebrew and astronomy who became famous in the second part of the 20th century after Franz Hammer, a biographer (along with Max Caspar) of Johannes Kepler, claimed that the drawings of a calculating clock, predating the public release of Pascal's calculator by twenty years, had been discovered in two unknown letters written by Schickard to Johannes Kepler in 1623 and 1624. Hammer asserted that because these letters had been lost for three hundred years, Blaise Pascal had been called and celebrated as the inventor of the mechanical calculator in error during all this time. After careful examination it was found that Schickard's drawings had been published at least once per century starting from 1718, that his machine was not complete and required additional wheels and springs and that it was designed around a single tooth carry mechanism that didn't work properly when used in calculating clocks. Schickard's machine was the first of several designs of direct entry calculating machines in the 17th century (including the designs of Blaise Pascal, Tito Burattini, Samuel Morland and René Grillet). Read more on Wikipedia

Since 2007, the English Wikipedia page of Wilhelm Schickard has received more than 201,926 page views. His biography is available in 33 different languages on Wikipedia (up from 30 in 2019). Wilhelm Schickard is the 32nd most popular astronomer (up from 35th in 2019), the 477th most popular biography from Germany (up from 498th in 2019) and the 6th most popular German Astronomer.

Wilhelm Schickard was a German mathematician and inventor. He is most famous for inventing the first mechanical calculator, which he called the Arithmometer.

Memorability Metrics

  • 200k

    Page Views (PV)

  • 66.60

    Historical Popularity Index (HPI)

  • 33

    Languages Editions (L)

  • 10.88

    Effective Languages (L*)

  • 1.95

    Coefficient of Variation (CV)

Page views of Wilhelm Schickards by language

Over the past year Wilhelm Schickard has had the most page views in the with 23,000 views, followed by German (15,248), and Spanish (7,791). In terms of yearly growth of page views the top 3 wikpedia editions are Cantonese (129.39%), Bulgarian (66.25%), and Egyptian Arabic (64.29%)


Among astronomers, Wilhelm Schickard ranks 32 out of 644Before him are Jocelyn Bell Burnell, Giuseppe Piazzi, Robert Luther, Caroline Herschel, Johannes Hevelius, and Johann Gottfried Galle. After him are Martin Ryle, Adolphe Quetelet, Michel Mayor, Jamshīd al-Kāshī, Arthur Eddington, and Fred Hoyle.

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Among people born in 1592, Wilhelm Schickard ranks 5Before him are John Amos Comenius, Shah Jahan, Hong Taiji, and Pierre Gassendi. After him are Gerard van Honthorst, Jacques Callot, George Villiers, 1st Duke of Buckingham, Gustav Horn, Count of Pori, Catalina de Erauso, Peter Snayers, and Saib Tabrizi. Among people deceased in 1635, Wilhelm Schickard ranks 2Before him is Lope de Vega. After him are Samuel de Champlain, Jacques Callot, Şehzade Bayezid, Zacharias Janssen, Reza Abbasi, Elisabeth of Lorraine, Fakhr al-Din II, Joos de Momper, Friedrich Spee, and Domenico Tintoretto.

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In Germany

Among people born in Germany, Wilhelm Schickard ranks 477 out of 7,253Before him are Maximilian I, Elector of Bavaria (1573), Walther Rathenau (1867), Werner von Fritsch (1880), Louis IV, Grand Duke of Hesse (1837), Ernst Busch (1885), and Henri Nestlé (1814). After him are Hermann Staudinger (1881), Gerda Taro (1910), Robert Bosch (1861), Heinrich Otto Wieland (1877), Frederick III, Elector of Saxony (1463), and Hans Baldung (1484).

Among ASTRONOMERS In Germany

Among astronomers born in Germany, Wilhelm Schickard ranks 6Before him are Johannes Kepler (1571), William Herschel (1738), Heinrich Wilhelm Matthias Olbers (1758), Caroline Herschel (1750), and Johann Gottfried Galle (1812). After him are Heinrich Louis d'Arrest (1822), Max Wolf (1863), Johann Bayer (1572), Johann Franz Encke (1791), Simon Marius (1573), and Friedrich Georg Wilhelm von Struve (1793).