Henri Lebesgue

1875 - 1941

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Henri Léon Lebesgue (French: [ɑ̃ʁi leɔ̃ ləbɛɡ]; June 28, 1875 – July 26, 1941) was a French mathematician known for his theory of integration, which was a generalization of the 17th-century concept of integration—summing the area between an axis and the curve of a function defined for that axis. Read more on Wikipedia

Since 2007, the English Wikipedia page of Henri Lebesgue has received more than 245,909 page views. His biography is available in 42 different languages on Wikipedia (up from 40 in 2019). Henri Lebesgue is the 125th most popular mathematician (up from 135th in 2019), the 940th most popular biography from France (up from 960th in 2019) and the 26th most popular Mathematician.

Henri Lebesgue is most famous for his contributions to the theory of measure and integration. He developed the concept of measure, which is a way of calculating the area of a set. He also developed the Lebesgue integral, which is a way of calculating the area under a curve.

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Among mathematicians, Henri Lebesgue ranks 125 out of 823Before him are Aloysius Lilius, Edward Norton Lorenz, Ferdinand von Lindemann, Andrew Wiles, Marian Rejewski, and Brook Taylor. After him are Herbert A. Hauptman, Menelaus of Alexandria, Andrey Markov, Simplicius of Cilicia, Alexis Clairaut, and Michel Rolle.

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Among people born in 1875, Henri Lebesgue ranks 28Before him are Paul Landowski, Giovanni Gentile, Antonio Machado, John Buchan, D. W. Griffith, and Grand Duchess Xenia Alexandrovna of Russia. After him are Zhang Zuolin, Edgar Wallace, Mihály Károlyi, Anatoly Lunacharsky, Cléo de Mérode, and Mistinguett. Among people deceased in 1941, Henri Lebesgue ranks 27Before him are Ernst Udet, Werner Mölders, Werner Sombart, Ignacy Jan Paderewski, Edward Rydz-Śmigły, and Sherwood Anderson. After him are Prajadhipok, Eduard von Böhm-Ermolli, Günther Prien, Gottfried Feder, Alexej von Jawlensky, and Christian Rakovsky.

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In France

Among people born in France, Henri Lebesgue ranks 940 out of 6,011Before him are Eleanor of England, Queen of Castile (1162), Geoffrey of Villehardouin (1150), Thierry Henry (1977), Marie de Rabutin-Chantal, marquise de Sévigné (1626), Francis III, Duke of Brittany (1518), and Antoine Meillet (1866). After him are Carolus Clusius (1525), Leonard of Noblac (496), Gaston Maspero (1846), Louis II of Anjou (1377), Martin Bucer (1491), and Louis Nicolas Vauquelin (1763).


Among mathematicians born in France, Henri Lebesgue ranks 26Before him are Siméon Denis Poisson (1781), Pierre Louis Maupertuis (1698), Jean-Victor Poncelet (1788), Girard Desargues (1591), Charles Hermite (1822), and Émile Borel (1871). After him are Alexis Clairaut (1713), Michel Rolle (1652), Jacques Hadamard (1865), Joseph Liouville (1809), Gabriel Lamé (1795), and Étienne Bézout (1730).