CHEMIST

Percy Lavon Julian

1899 - 1975

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Percy Lavon Julian (April 11, 1899 – April 19, 1975) was an American research chemist and a pioneer in the chemical synthesis of medicinal drugs from plants. He was the first to synthesize the natural product physostigmine and was a pioneer in the industrial large-scale chemical synthesis of the human hormones progesterone and testosterone from plant sterols such as stigmasterol and sitosterol. His work laid the foundation for the steroid drug industry's production of cortisone, other corticosteroids, and birth control pills.He later started his own company to synthesize steroid intermediates from the wild Mexican yam. Read more on Wikipedia

Since 2007, the English Wikipedia page of Percy Lavon Julian has received more than 739,663 page views. His biography is available in 15 different languages on Wikipedia. Percy Lavon Julian is the 503rd most popular chemist, the 10,377th most popular biography from United States and the 96th most popular American Chemist.

Memorability Metrics

  • 740k

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    Historical Popularity Index (HPI)

  • 15

    Languages Editions (L)

  • 1.55

    Effective Languages (L*)

  • 3.30

    Coefficient of Variation (CV)

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Among CHEMISTS

Among chemists, Percy Lavon Julian ranks 503 out of 510Before him are Robert Jarvik, F. Albert Cotton, Ida Freund, Barbara Askins, John George Children, and Yellapragada Subbarow. After him are Martyn Poliakoff, Donald Howard Menzel, Harry B. Gray, Darshan Ranganathan, Jacqueline Barton, and Mai Thi Nguyen-Kim.

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Contemporaries

Among people born in 1899, Percy Lavon Julian ranks 234Before him are Dwight Frye, Jimmie Davis, Glenn Strange, Eric Linklater, Carlos P. Romulo, and Aline MacMahon. After him are Seán Lemass, Randall Thompson, Cyril Radcliffe, 1st Viscount Radcliffe, and Gertrude Berg. Among people deceased in 1975, Percy Lavon Julian ranks 202Before him are Argemiro, Raphael Tracey, Viktor Anichkin, Evelyn Brent, Lancelot Hogben, and Bram Fischer. After him are Bob Wills, Larry Parks, Marjorie Main, and Alice Catherine Evans.

Others Born in 1899

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Others Deceased in 1975

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In United States

Among people born in United States, Percy Lavon Julian ranks 10,377 out of 15,968Before him are Bret Michaels (1963), Walter Donaldson (1893), Wayne C. Booth (1921), James Rumbaugh (1947), Bernard King (1956), and Taryn Manning (1978). After him are Austin Butler (1991), John M. Fabian (1939), Cheryl Hines (1965), Bob Richards (1926), Marisa Miller (1978), and Kay Bailey Hutchison (1943).

Among CHEMISTS In United States

Among chemists born in United States, Percy Lavon Julian ranks 96Before him are Bruce Ames (1928), Susan Solomon (1956), Mary L. Good (1931), Robert Jarvik (1946), F. Albert Cotton (1930), and Barbara Askins (1939). After him are Donald Howard Menzel (1901), Harry B. Gray (1935), and Jacqueline Barton (1952).