Pieter Dirkszoon Keyser

1540 - Today

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Pieter Dirkszoon Keyser (occasionally Petrus Theodorus; c. 1540 – 11 September 1596) was a Dutch navigator and celestial cartographer who mapped several constellations on the southern celestial hemisphere. Read more on Wikipedia

Since 2007, the English Wikipedia page of Pieter Dirkszoon Keyser has received more than 39,379 page views. His biography is available in 15 different languages on Wikipedia. Pieter Dirkszoon Keyser is the 259th most popular explorer, the 2,797th most popular biography from Germany and the 17th most popular German Explorer.

Memorability Metrics

  • 39k

    Page Views (PV)

  • 62.90

    Historical Popularity Index (HPI)

  • 15

    Languages Editions (L)

  • 5.58

    Effective Languages (L*)

  • 1.70

    Coefficient of Variation (CV)

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Among explorers, Pieter Dirkszoon Keyser ranks 259 out of 405Before him are Ludwig Leichhardt, Dmitry Laptev, John Byron, Francis Younghusband, Otto Finsch, and Wilfred Thesiger. After him are John Biscoe, Louis Jolliet, Nikolai Spathari, Edward S. Curtis, Sebastián Vizcaíno, and Ippolito Rosellini.

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Among people born in 1540, Pieter Dirkszoon Keyser ranks 18Before him are Won Gyun, Pierre de Bourdeille, seigneur de Brantôme, Ostilio Ricci, Denis Calvaert, Princess Cecilia of Sweden, and Lady Katherine Grey. After him are Philips of Marnix, Lord of Saint-Aldegonde, Giovanni Artusi, and Edmund Campion.

Others Born in 1540

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In Germany

Among people born in Germany, Pieter Dirkszoon Keyser ranks 2,797 out of 5,289Before him are Albert Niemann (1834), Oliver Riedel (1971), Princess Luise Dorothea of Prussia (1680), Heinrich XXII, Prince Reuss of Greiz (1846), Gottfried, Prince of Hohenlohe-Langenburg (1897), and Rudolf Jakob Camerarius (1665). After him are Ernst-Günther Baade (1897), Gottfried Kirch (1639), Erich Neumann (1905), Ludwig von Reuter (1869), Elia Levita (1469), and Otto Nerz (1892).

Among EXPLORERS In Germany

Among explorers born in Germany, Pieter Dirkszoon Keyser ranks 17Before him are Nikolaus Federmann (1505), Wilhelm Filchner (1877), Carl Peters (1856), Karl Weyprecht (1838), Ludwig Leichhardt (1813), and Otto Finsch (1839). After him are Adolf Lüderitz (1834), Hermann Wissmann (1853), Albert von Le Coq (1860), Friedrich Gerhard Rohlfs (1831), Johannes Rebmann (1820), and Johann Ludwig Krapf (1810).