Hans Spemann

1869 - 1941

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Hans Spemann (German pronunciation: [ˈhans ˈʃpeːˌman] (listen); 27 June 1869 – 9 September 1941) was a German embryologist who was awarded a Nobel Prize in Physiology or Medicine in 1935 for his student Hilde Mangold's discovery of the effect now known as embryonic induction, an influence, exercised by various parts of the embryo, that directs the development of groups of cells into particular tissues and organs. Read more on Wikipedia

Since 2007, the English Wikipedia page of Hans Spemann has received more than 150,009 page views. His biography is available in 54 different languages on Wikipedia (up from 50 in 2019). Hans Spemann is the 47th most popular biologist (up from 49th in 2019), the 532nd most popular biography from Germany (up from 559th in 2019) and the 8th most popular Biologist.

Hans Spemann is most famous for his work in embryology. He was one of the first to experiment with transplanting cells from one embryo to another, and he discovered the phenomenon of twinning.

Memorability Metrics

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  • 65.53

    Historical Popularity Index (HPI)

  • 54

    Languages Editions (L)

  • 12.79

    Effective Languages (L*)

  • 2.51

    Coefficient of Variation (CV)

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Among biologists, Hans Spemann ranks 47 out of 841Before him are Richard Owen, Nikolaas Tinbergen, René Antoine Ferchault de Réaumur, August Weismann, Matthias Jakob Schleiden, and Karl Ernst von Baer. After him are Peter Simon Pallas, Nikolai Vavilov, Hugo de Vries, Vladimir Vernadsky, Adelbert von Chamisso, and Jean-Henri Fabre.

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Among people born in 1869, Hans Spemann ranks 12Before him are Victor Emmanuel III of Italy, Charles Thomson Rees Wilson, Nadezhda Krupskaya, Karl Haushofer, Emma Goldman, and Fritz Pregl. After him are Kasturba Gandhi, Maud of Wales, Rudolf Otto, Frederick Trump, Calouste Gulbenkian, and Christian Lous Lange. Among people deceased in 1941, Hans Spemann ranks 20Before him are Emanuel Lasker, Walther Nernst, Ioannis Metaxas, Paul Sabatier, El Lissitzky, and Marina Tsvetaeva. After him are Ernst Udet, Werner Mölders, Werner Sombart, Ignacy Jan Paderewski, Edward Rydz-Śmigły, and Sherwood Anderson.

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In Germany

Among people born in Germany, Hans Spemann ranks 532 out of 6,142Before him are Maria Sophie of Bavaria (1841), Kurt Weill (1900), Otto Günsche (1917), Theodor Morell (1886), Helmut Newton (1920), and Henning von Tresckow (1901). After him are Hasso von Manteuffel (1897), Lothair II, Holy Roman Emperor (1075), Georg Christoph Lichtenberg (1742), Eleonor Magdalene of Neuburg (1655), Horst Wessel (1907), and Peter Simon Pallas (1741).

Among BIOLOGISTS In Germany

Among biologists born in Germany, Hans Spemann ranks 8Before him are Maria Sibylla Merian (1647), Theodor Schwann (1810), Harald zur Hausen (1936), Albrecht Kossel (1853), August Weismann (1834), and Matthias Jakob Schleiden (1804). After him are Peter Simon Pallas (1741), Ernst Mayr (1904), Bernard Katz (1911), Julius Richard Petri (1852), Georg Wilhelm Steller (1709), and Johann Christian Daniel von Schreber (1739).