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 142,989 page views. His biography is available in 50 different languages on Wikipedia (up from 49 in 2019). Hans Spemann is the 49th most popular biologist (down from 41st in 2019), the 559th most popular biography from Germany (down from 446th in 2019) and the 7th most popular German 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.

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    Historical Popularity Index (HPI)

  • 50

    Languages Editions (L)

  • 10.45

    Effective Languages (L*)

  • 2.62

    Coefficient of Variation (CV)

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Among biologists, Hans Spemann ranks 49 out of 844Before him are René Antoine Ferchault de Réaumur, Adelbert von Chamisso, Erasmus Darwin, Robert Brown, Christian de Duve, and Theodor Schwann. After him are Hugo de Vries, Ivan Vladimirovich Michurin, Albrecht Kossel, Ernst Mayr, Vladimir Vernadsky, and François Jacob.

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Among people born in 1869, Hans Spemann ranks 15Before him are Emma Goldman, Karl Haushofer, Fritz Pregl, Gustaf Dalén, Mary Mallon, and Calouste Gulbenkian. After him are Maud of Wales, Siegfried Wagner, Gustav Vigeland, Felix Salten, Kasturba Gandhi, and Frederick Trump. Among people deceased in 1941, Hans Spemann ranks 24Before him are Ioannis Metaxas, Werner Sombart, Ernst Udet, Ignacy Jan Paderewski, Frederick Banting, and Werner Mölders. After him are Edward Rydz-Śmigły, Prajadhipok, Günther Prien, Eduard von Böhm-Ermolli, Henri Lebesgue, and Alexej von Jawlensky.

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In Germany

Among people born in Germany, Hans Spemann ranks 559 out of 5,289Before him are Dietrich Eckart (1868), Caroline Augusta of Bavaria (1792), Hans-Joachim Marseille (1919), Wolfgang Petersen (1941), Christopher Clavius (1538), and Georg Elser (1903). After him are Adam of Bremen (null), Felix Hoffmann (1868), Johann Adolph Hasse (1699), Sophia of Nassau (1836), Adolphe, Grand Duke of Luxembourg (1817), and Jürgen Stroop (1895).

Among BIOLOGISTS In Germany

Among biologists born in Germany, Hans Spemann ranks 7Before him are Ernst Haeckel (1834), Maria Sibylla Merian (1647), Peter Simon Pallas (1741), August Weismann (1834), Harald zur Hausen (1936), and Theodor Schwann (1810). After him are Albrecht Kossel (1853), Ernst Mayr (1904), Matthias Jakob Schleiden (1804), Johann Friedrich Gmelin (1748), Julius Richard Petri (1852), and Christian Gottfried Ehrenberg (1795).