John Langdon Down

1828 - 1896

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John Langdon Haydon Down (18 November 1828 – 7 October 1896) was a British physician best known for his description of the genetic condition now known as Down syndrome, which he originally classified in 1862. Read more on Wikipedia

Since 2007, the English Wikipedia page of John Langdon Down has received more than 270,312 page views. His biography is available in 30 different languages on Wikipedia (up from 27 in 2019). John Langdon Down is the 101st most popular physician (up from 104th in 2019), the 611th most popular biography from United Kingdom (down from 553rd in 2019) and the 7th most popular British Physician.

John Langdon Down was a doctor who first described what is now known as Down syndrome in 1866.

Memorability Metrics

  • 270k

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  • 71.68

    Historical Popularity Index (HPI)

  • 30

    Languages Editions (L)

  • 8.23

    Effective Languages (L*)

  • 2.13

    Coefficient of Variation (CV)

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Among physicians, John Langdon Down ranks 101 out of 509Before him are Giovanni Alfonso Borelli, Eric Kandel, Arvid Carlsson, Friedrich Miescher, John Snow, and Franz Joseph Gall. After him are Charles Nicolle, Albert Calmette, Ferid Murad, Werner Forssmann, Corneille Heymans, and Ragnar Granit.

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Among people born in 1828, John Langdon Down ranks 12Before him are Saigō Takamori, Hippolyte Taine, Dante Gabriel Rossetti, Charbel Makhlouf, Randal Cremer, and Nikolay Chernyshevsky. After him are Louise of the Netherlands, Joseph Swan, Albert of Saxony, Albert Marth, Paul Gachet, and Edmond François Valentin About. Among people deceased in 1896, John Langdon Down ranks 15Before him are Hippolyte Fizeau, John Everett Millais, Harriet Beecher Stowe, Naser al-Din Shah Qajar, H. H. Holmes, and José Rizal. After him are Edmond de Goncourt, Richard Avenarius, Ivar Aasen, Ambroise Thomas, Louis-Jules Trochu, and Frederic Leighton.

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In United Kingdom

Among people born in United Kingdom, John Langdon Down ranks 611 out of 6,924Before him are Sir Arthur Harris, 1st Baronet (1892), Hugh Laurie (1959), Eduard Suess (1831), Alfred, Lord Tennyson (1809), Samuel Richardson (1689), and Julian Huxley (1887). After him are Antony Armstrong-Jones, 1st Earl of Snowdon (1930), Sean Bean (1959), Ian McEwan (1948), Gordon Brown (1951), Bobby Robson (1933), and Gladwyn Jebb (1900).

Among PHYSICIANS In United Kingdom

Among physicians born in United Kingdom, John Langdon Down ranks 7Before him are Edward Jenner (1749), William Harvey (1578), Joseph Lister (1827), James Parkinson (1755), Robert Edwards (1925), and John Snow (1813). After him are Elizabeth Blackwell (1821), Frederick Griffith (1879), Edgar Adrian (1889), Niels Kaj Jerne (1911), Alan Hodgkin (1914), and Thomas Willis (1621).