L. L. Zamenhof

1859 - 1917

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L. L. Zamenhof (15 December 1859 – 14 April 1917) was the creator of Esperanto, the most widely used constructed international auxiliary language. Zamenhof first developed the Esperanto language in 1873 while still in school. He grew up fascinated by the idea of a world without war and believed that this could happen with the help of a new international auxiliary language. Read more on Wikipedia

Since 2007, the English Wikipedia page of L. L. Zamenhof has received more than 826,413 page views. His biography is available in 112 different languages on Wikipedia (up from 105 in 2019). L. L. Zamenhof is the 9th most popular physician (up from 11th in 2019), the 11th most popular biography from Poland and the most popular Polish Physician.

L. L. Zamenhof is most famous for inventing Esperanto, a language that is meant to be easy to learn and use.

Memorability Metrics

  • 830k

    Page Views (PV)

  • 76.86

    Historical Popularity Index (HPI)

  • 112

    Languages Editions (L)

  • 14.87

    Effective Languages (L*)

  • 3.66

    Coefficient of Variation (CV)


Among physicians, L. L. Zamenhof ranks 9 out of 726Before him are Paracelsus, Florence Nightingale, Robert Koch, Basil of Caesarea, Josef Mengele, and Edward Jenner. After him are Muhammad ibn Zakariya al-Razi, Andreas Vesalius, Albert Schweitzer, William Harvey, Ignaz Semmelweis, and Michael Servetus.

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Among people born in 1859, L. L. Zamenhof ranks 6Before him are Wilhelm II, German Emperor, Pierre Curie, Arthur Conan Doyle, Henri Bergson, and Knut Hamsun. After him are Edmund Husserl, John Dewey, Svante Arrhenius, Alfred Dreyfus, Georges Seurat, and Yuan Shikai. Among people deceased in 1917, L. L. Zamenhof ranks 5Before him are Émile Durkheim, Octave Mirbeau, Auguste Rodin, and Edgar Degas. After him are Mata Hari, Eduard Buchner, Ferdinand von Zeppelin, Emil von Behring, Adolf von Baeyer, Edward Burnett Tylor, and Emil Theodor Kocher.

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In Poland

Among people born in Poland, L. L. Zamenhof ranks 11 out of 1,694Before him are Arthur Schopenhauer (1788), Catherine the Great (1729), Rosa Luxemburg (1871), David Ben-Gurion (1886), Lech Wałęsa (1943), and Paul von Hindenburg (1847). After him are Manfred von Richthofen (1892), Günter Grass (1927), Adam Mickiewicz (1798), Fritz Haber (1868), Johann Gottfried Herder (1744), and Marie Leszczyńska (1703).

Among PHYSICIANS In Poland

Among physicians born in Poland, L. L. Zamenhof ranks 1After him are Rudolf Virchow (1821), Emil von Behring (1854), Paul Ehrlich (1854), Albert Sabin (1906), Carl Wernicke (1848), Alexander Bogdanov (1873), Magnus Hirschfeld (1868), Leon Pinsker (1821), Bronisława Dłuska (1865), Jan Jesenius (1566), and Albert Ludwig Sigesmund Neisser (1855).