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Irena Sendler

1910 - 2008

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Irena Stanisława Sendler (née Krzyżanowska), also referred to as Irena Sendlerowa in Poland, nom de guerre Jolanta (15 February 1910 – 12 May 2008), was a Polish humanitarian, social worker, and nurse who served in the Polish Underground Resistance during World War II in German-occupied Warsaw. From October 1943 she was head of the children's section of Żegota, the Polish Council to Aid Jews (Polish: Rada Pomocy Żydom).In the 1930s, Sendler conducted her social work as one of the activists connected to the Free Polish University. From 1935 to October 1943, she worked for the Department of Social Welfare and Public Health of the City of Warsaw. Read more on Wikipedia

Since 2007, the English Wikipedia page of Irena Sendler has received more than 2,810,336 page views. Her biography is available in 60 different languages on Wikipedia (up from 57 in 2019). Irena Sendler is the 24th most popular social activist (down from 17th in 2019), the 33rd most popular biography from Poland (down from 14th in 2019) and the 2nd most popular Polish Social Activist.

Irena Sendler was a Polish woman who saved 2,500 Jewish children from the Nazis by smuggling them out of the Warsaw Ghetto.

Memorability Metrics

  • 2.8M

    Page Views (PV)

  • 71.83

    Historical Popularity Index (HPI)

  • 60

    Languages Editions (L)

  • 9.47

    Effective Languages (L*)

  • 3.01

    Coefficient of Variation (CV)

Page views of Irena Sendlers by language


Among social activists, Irena Sendler ranks 24 out of 538Before her are Rosa Parks, Lady Godiva, Gustav I of Sweden, Peter Kropotkin, Charlotte Corday, and Olympe de Gouges. After her are Bertha von Suttner, Thomas Müntzer, Emiliano Zapata, Omar Mukhtar, Martin Niemöller, and Pheidippides.

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Among people born in 1910, Irena Sendler ranks 6Before her are Mother Teresa, Akira Kurosawa, Jacques Cousteau, Robert K. Merton, and Giuseppe Meazza. After her are Ingrid of Sweden, Gloria Stuart, Konrad Zuse, Jean Genet, Paulette Goddard, and Django Reinhardt. Among people deceased in 2008, Irena Sendler ranks 8Before her are Yves Saint Laurent, Bobby Fischer, Paul Newman, Edmund Hillary, Chinghiz Aitmatov, and Arthur C. Clarke. After her are Suharto, Samuel P. Huntington, Charlton Heston, Albert Hofmann, Hua Guofeng, and Sydney Pollack.

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In Poland

Among people born in Poland, Irena Sendler ranks 33 out of 1,454Before her are Wisława Szymborska (1923), Arthur Rubinstein (1887), Adam Mickiewicz (1798), Maximilian Kolbe (1894), Krzysztof Kieślowski (1941), and Kurt Lewin (1890). After her are Marie Leszczyńska (1703), Bronisław Malinowski (1884), Leonid Kravchuk (1934), Vladislaus II of Hungary (1456), Günther von Kluge (1882), and Hans-Ulrich Rudel (1916).


Among social activists born in Poland, Irena Sendler ranks 2Before her are Rosa Luxemburg (1871). After her are Ferdinand Lassalle (1825), Mordechai Anielewicz (1919), Leopold Trepper (1904), Jan Karski (1914), Ryszard Siwiec (1909), Jan Gotlib Bloch (1836), and Ernestine Rose (1810).