INVENTOR

Zacharias Janssen

1585 - 1635

Photo of Zacharias Janssen

Icon of person Zacharias Janssen

Zacharias Janssen; also Zacharias Jansen or Sacharias Jansen; 1585 – pre-1632) was a Dutch spectacle-maker who lived most of his life in Middelburg. Read more on Wikipedia

Since 2007, the English Wikipedia page of Zacharias Janssen has received more than 685,765 page views. His biography is available in 22 different languages on Wikipedia (up from 21 in 2019). Zacharias Janssen is the 114th most popular inventor (down from 109th in 2019), the 177th most popular biography from Netherlands (down from 143rd in 2019) and the 2nd most popular Dutch Inventor.

Zacharias Janssen is most famous for his invention of the first telescope.

Memorability Metrics

  • 690k

    Page Views (PV)

  • 66.06

    Historical Popularity Index (HPI)

  • 22

    Languages Editions (L)

  • 4.66

    Effective Languages (L*)

  • 2.47

    Coefficient of Variation (CV)

Among INVENTORS

Among inventors, Zacharias Janssen ranks 114 out of 426. Before him are Clément Ader, Abraham-Louis Breguet, Gaston Glock, Lee de Forest, Léon Theremin, and Alfred Krupp. After him are Charles-Émile Reynaud, Josiah Warren, André Michelin, Hiram Maxim, Theobald Boehm, and Percy Spencer.

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Contemporaries

Among people born in 1585, Zacharias Janssen ranks 10. Before him are Hendrick Avercamp, John George I, Elector of Saxony, Uriel da Costa, Anna of Tyrol, Jacob Le Maire, and Lucilio Vanini. After him are John Rolfe, Jacques Lemercier, Mary Ward, Massimo Stanzione, Hamnet Shakespeare, and Johann Baptist Cysat. Among people deceased in 1635, Zacharias Janssen ranks 6. Before him are Lope de Vega, Wilhelm Schickard, Samuel de Champlain, Jacques Callot, and Şehzade Bayezid. After him are Reza Abbasi, Elisabeth of Lorraine, Fakhr al-Din II, Joos de Momper, Friedrich Spee, and Domenico Tintoretto.

Others Born in 1585

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Others Deceased in 1635

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In Netherlands

Among people born in Netherlands, Zacharias Janssen ranks 177 out of 1,646. Before him are Mariska Veres (1947), Coenraad Jacob Temminck (1778), Karel Appel (1921), Pieter Lastman (1583), Peter Bosz (1963), and Cornelis Johannes van Houten (1920). After him are Wim Duisenberg (1935), Jeroen Krabbé (1944), Colonel Tom Parker (1909), Bert van Marwijk (1952), Lambert of Maastricht (635), and Jan Lievens (1607).

Others born in Netherlands

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Among INVENTORS In Netherlands

Among inventors born in Netherlands, Zacharias Janssen ranks 2. Before him are Cornelis Drebbel (1572). After him are Lou Ottens (1926), and Boyan Slat (1994).

Dutch born Inventors

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