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INVENTOR

Zacharias Janssen

1585 - 1635

Photo of Zacharias Janssen

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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 643,821 page views. His biography is available in 21 different languages on Wikipedia. Zacharias Janssen is the 109th most popular inventor, the 143rd most popular biography from Netherlands (down from 140th in 2019) and the 2nd most popular Dutch Inventor.

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

Memorability Metrics

  • 640k

    Page Views (PV)

  • 60.45

    Historical Popularity Index (HPI)

  • 21

    Languages Editions (L)

  • 4.62

    Effective Languages (L*)

  • 2.40

    Coefficient of Variation (CV)

Page views of Zacharias Janssens by language


Among INVENTORS

Among inventors, Zacharias Janssen ranks 109 out of 354. Before him are Taiichi Ohno, W. O. Bentley, Jacque Fresco, William Webb Ellis, Joseph Pilates, and Vladimir K. Zworykin. After him are Mary the Jewess, André Michelin, Samuel Crompton, Percy Spencer, Johann Philipp Reis, and Theobald Boehm.

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Contemporaries

Among people born in 1585, Zacharias Janssen ranks 8. Before him are Heinrich Schütz, Cornelius Jansen, Hendrick Avercamp, Anna of Tyrol, John George I, Elector of Saxony, and Uriel da Costa. After him are Lucilio Vanini, Jacob Le Maire, Jacques Lemercier, John Rolfe, Hamnet Shakespeare, and Mary Ward. Among people deceased in 1635, Zacharias Janssen ranks 5. Before him are Lope de Vega, Wilhelm Schickard, Samuel de Champlain, and Jacques Callot. After him are Reza Abbasi, Joos de Momper, Domenico Tintoretto, Elisabeth of Lorraine, Friedrich Spee, Fakhr al-Din II, and Alessandro Tassoni.

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 143 out of 1,427. Before him are Nikolaus Joseph von Jacquin (1727), Jeroen Krabbé (1944), Willem Schouten (1567), Ruud Krol (1949), Coenraad Jacob Temminck (1778), and Mariska Veres (1947). After him are Ferdinand Bol (1616), Arie Haan (1948), Jaap de Hoop Scheffer (1948), Princess Irene of the Netherlands (1939), George Blake (1922), and Abraham Bloemaert (1566).

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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