Alexander Fleming

1881 - 1955

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Sir Alexander Fleming (6 August 1881 – 11 March 1955) was a Scottish physician and microbiologist, best known for discovering the world's first broadly effective antibiotic substance, which he named penicillin. His discovery in 1928 of what was later named benzylpenicillin (or penicillin G) from the mould Penicillium rubens has been described as the "single greatest victory ever achieved over disease". Read more on Wikipedia

Since 2007, the English Wikipedia page of Alexander Fleming has received more than 5,781,485 page views. His biography is available in 113 different languages on Wikipedia (up from 108 in 2019). Alexander Fleming is the 4th most popular biologist, the 31st most popular biography from United Kingdom (down from 27th in 2019) and the 2nd most popular British Biologist.

Alexander Fleming is most famous for his discovery of penicillin.

Memorability Metrics

  • 5.8M

    Page Views (PV)

  • 80.93

    Historical Popularity Index (HPI)

  • 113

    Languages Editions (L)

  • 14.84

    Effective Languages (L*)

  • 4.10

    Coefficient of Variation (CV)


Among biologists, Alexander Fleming ranks 4 out of 1,097Before him are Charles Darwin, Carl Linnaeus, and Gregor Mendel. After him are Ivan Pavlov, Antonie van Leeuwenhoek, Jean-Baptiste Lamarck, Ernst Haeckel, Konrad Lorenz, Georges Cuvier, Rosalind Franklin, and James Watson.

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Among people born in 1881, Alexander Fleming ranks 3Before him are Pablo Picasso, and Mustafa Kemal Atatürk. After him are Stefan Zweig, Pope John XXIII, Béla Bartók, Asta Nielsen, Lu Xun, Anna Pavlova, Alexander Kerensky, Hans Kelsen, and Enver Pasha. Among people deceased in 1955, Alexander Fleming ranks 2Before him is Albert Einstein. After him are Thomas Mann, James Dean, Dale Carnegie, Sadako Sasaki, António Egas Moniz, José Ortega y Gasset, Fernand Léger, Alberto Ascari, Rodolfo Graziani, and Pierre Teilhard de Chardin.

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In United Kingdom

Among people born in United Kingdom, Alexander Fleming ranks 31 out of 8,785Before him are Mary II of England (1662), Mick Jagger (1943), Camilla, Duchess of Cornwall (1947), Charles Dickens (1812), Margaret Thatcher (1925), and Anne Boleyn (1501). After him are James Cook (1728), James Prescott Joule (1818), Alexander Graham Bell (1847), Jane Austen (1775), Robert Hooke (1635), and David Hume (1711).

Among BIOLOGISTS In United Kingdom

Among biologists born in United Kingdom, Alexander Fleming ranks 2Before him are Charles Darwin (1809). After him are Rosalind Franklin (1920), Alfred Russel Wallace (1823), Francis Crick (1916), Thomas Henry Huxley (1825), Robert Brown (1773), Christian de Duve (1917), Richard Owen (1804), John Edward Gray (1800), Robert Edwards (1925), and Philip Miller (1691).