Award-winning, bestselling American novelist John Irving is known for works like The Cider House Rules and The World According to Garp.
1942-
J.B.S. Haldane was a British geneticist who helped found the theories of population genetics.
1892-1964
Stonewall Jackson was a leading Confederate general during the U.S. Civil War, commanding forces at Manassas, Antietam, Fredericksburg and Chancellorsville.
1824-1863
The writings of psychologist and philosopher William James had a major impact on the way we look at the mind, the body, and the world.
1842-1910
James Weldon Johnson was an African-American writer, politician, educator and lawyer. He was also an early civil rights activist and leader of the NAACP.
1871-1938
Philip Johnson was an American architect best known for the design for his own home, the Glass House, in New Canaan, CT.
1906-2005
Lois Mailou Jones was a painter whose works reflect a command of widely varied styles, from traditional landscape to African-themed abstraction.
1905-1998
1936-2002
Daniel J. Boorstin was a writer and historian known for his Americans trilogy and The Discoverers.
1914-2004
African-American chemist Percy Julian was a pioneer in the chemical synthesis of medicinal drugs such as cortisone, steroids and birth control pills.
1899-1975
First female politician,attorney to serve as solicitor general of the United States of America.
1960-
Jerome Kagan is a professor of psychology at Harvard University and is regarded as key pioneer in the field of developmental psychology.
1929-
Heike Kamerlingh-Onnes was a Dutch scientist who won the Nobel Prize in Physics for his production of liquid helium. He also discovered superconductivity.
1853-1926
Russian-born painter Wassily Kandinsky is credited as a leader in avant-garde art as one of the founders of pure abstraction in painting in the early 20th century.
1866-1944
Immanuel Kant was a German philosopher during the Enlightenment era of the late 18th century. His best known work is the Critique of Pure Reason.
1724-1804
1935-
American educator Helen Keller overcame the adversity of being blind and deaf to become one of the 20th century's leading humanitarians, as well as co-founder of the ACLU.
1880-1968
1904-2005
1906-1978
Søren Kierkegaard was a 19th century Danish philosopher who wrote about Christian belief systems and helped birth existentialism.
1813-1855
A gifted mathematician, Ada Lovelace is considered to have written instructions for the first computer program in the mid-1800s.
1815-1852
Biologist Alfred Kinsey wrote Sexual Behavior in the Human Male, which was based on research he and his colleagues conducted at the Institute for Sex Research.
1894-1956
1926-2006
1743-1817
Paul Klee was a prolific Swiss and German artist best known for his large body of work, influenced by cubism, expressionism and surrealism.
1879-1940
Julia Kristeva is a psychoanalyst, critic and novelist, known for her writings in structuralist linguistics, psychoanalysis and philosophical feminism.
1941-
1905-1973
Stanley Kunitz was an American poet who served as Poet Laureate Consultant in Poetry to the Library of Congress (1974; 2000). He won the Pulitzer Prize for his work Selected Poems 1928-1958 (1958).
1905-2006
1938-
1929-2007
Jacob Lawrence was an American painter, and the most widely acclaimed African-American artist of the 20th century. He is best known for his Migration Series.
1917-2000
Mary Leakey was a paleoanthropologist who, along with husband Louis, made several prominent scientific discoveries. Skull fossils found by the Leakeys advanced our understanding of human evolution.
1913-1996
1886-1954
1962-
Rita Levi-Montalcini shared the 1986 Nobel Prize for physiology or medicine for her part in the discovery of a protein that stimulates nerve cell growth.
1909-2012
1959-
Actor, writer and producer James Lipton founded the Actors Studio Drama School and has hosted Bravo TV's Inside the Actors Studio since 1994.
1926-
Franz Liszt was a Hungarian pianist and composer of enormous influence and originality. He was renowned in Europe during the Romantic movement.
1811-1886
English philosopher John Locke's works lie at the foundation of modern philosophical empiricism and political liberalism.
1632-1704
Henry Cabot Lodge was an American politician from Massachusetts and the first U.S. Senate majority leader.
1850-1924
1874-1925
1855-1916
1914-2005
1860-1941
Mary Lyon was an educator and founder of the first women's college, which is now known as Mount Holyoke College.
1797-1849
A leading twentieth century philosopher, Jean-Francois Lyotard was noted for his analysis of postmodernity and its impact on humankind.
1924-1998
1946-
Alfred Thayer Mahan was an American naval officer and historian who was an exponent of sea power in the late 19th and early 20th centuries.
1840-1914
1884-1942
William Manchester was a historian who notably wrote about American president John F. Kennedy and Winston Churchill.
1922-
1924-2010
Horace Mann was an American politician and education reformer, best known for promoting universal public education and teacher training in "normal schools."
1796-1859
Professor Peter Mansfield received the Nobel Prize for further developing magnetic resonance (MRI) technology, leading to its widespread use in hospitals.
1933-
Rudolph A. Marcus is a Canadian chemist known for his research in electron-transfer reactions. He established what is known as the Marcus Theory, for which he was awarded the Nobel Prize in 1992.
1923-
Herbert Marcuse was an American political philosopher whose Marxists theories of 20th-century Western society influenced liberal student groups in the 1960s.
1898-1979
German philosopher and revolutionary socialist Karl Marx published The Communist Manifesto and Das Kapital, anticapitalist works that form the basis of Marxism.
1818-1883
U.S. Psychologist Abraham Maslow was a practitioner of humanistic psychology. He is known for his theory of “self-actualization.”
1908-1970
Scottish physicist James Clerk Maxwell originated the idea of electromagnetic radiation. His ideas formed the basis for quantum mechanics.
1831-1879
Robert C. Maynard was a journalist and publisher best known for being the first African American to own and publish a major daily newspaper (Tribune).
1937-1993
Architect Thom Mayne helped found the architectural design firm Morphosis, and co-founded the Southern California Institute of Architecture (SCI-Arc).
1944-
Ornithologist Ernst Mayr demonstrated that the development of separate species in higher animals depends on the geographical isolation of precursor populations.
1904-2005
High school teacher Christa McAuliffe was the first American civilian selected to go into space. She died in the space shuttle Challenger’s explosion in 1986.
1948-1986
Cindy McCain is an Arizona businesswoman, a philanthropist who works with international nonprofit organizations, and the wife of U.S. Senator John McCain.
1954-
American politician Eugene J. McCarthy challenged Lyndon B. Johnson in the race for the 1968 Democratic presidential nomination, which led to Johnson's withdrawal.
1916-2005
William McGuffey was a 19th-century educator remembered chiefly for his series of elementary readers.
1800-1873
Jackie McLean was an American jazz alto saxophonist and also an educator. His personal style included short phrases or irregular length.
1931-2006
1911-1980
1943-
Margaret Mead is best known for her studies and publications on cultural anthropology.
1901-1978
Dmitri Mendeleyev was a Russian chemist who developed the periodic classification of the elements.
1834-1907
1809-1847
Maurice Merleau-Ponty was a French philosopher and man of letters, the leading exponent of phenomenology in France.
1908-1961
1927-
1946-
James Mill was a Scottish historian, economist, and philosopher. He supported the radical philosophical belief called Utilitarianism.
1773-1836
John Stuart Mill, who has been called the most influential English-speaking philosopher of the 19th century, was a British philosopher, economist, and moral and political theorist. His works include books and essays covering logic, epistemology, economics, social and political philosophy, ethics, and religion, among them A System of Logic, On Liberty, and Utilitarianism.
1806-1873
Abby Lee Miller, who runs a Pittsburgh dance studio, is known for her tirades and tough training as star of Lifetime TV's reality show Dance Moms.
1966-
1863-1939
1868-1953
1916-1962
1608-1674
1815-1864
Mohammed was the founder of the religion of Islam, accepted by Muslims throughout the world as the last of the prophets of God.
570-632
László Moholy-Nagy was a Hungarian painter, photographer and art teacher who took charge of the metal workshop of the Bauhaus.
1895-1946
Italian physician Maria Montessori was a pioneer of theories in early childhood education, which are still implemented in Montessori schools all over the globe.
1870-1952
Thomas More is known for his 1516 book Utopia and for his untimely death in 1535, after refusing to acknowledge King Henry VIII as head of the Church of England. He was canonized by the Catholic Church as a saint in 1935.
1478-1535
Barbara Morgan was the first teacher-astronaut to complete a shuttle mission on board the Endeavor in 2007.
1951-
1916-1978
1941-
Dr. Khalil Gibran Muhammad is a professor, author and media commentator who is executive director of the Schomburg Center for Research in Black Culture.
1972-
Prolific novelist Iris Murdoch won a Booker Prize for The Sea, the Sea. In 2001, she was portrayed by Kate Winslet and Judy Dench in the biographical film Iris.
1919-1999
1910-1985
1895-1991
Nobel Prize-winning Swedish economist and sociologist Gunner Myrdal is regarded as a major theorist of international relations and developmental economics.
1898-1987
1790-1868
1928-
1950-
Twice appointed the United States' poet laureate, Howard Nemerov was a writer with wit and illuminating irony.
1920-1991
English physicist and mathematician Sir Isaac Newton, most famous for his law of gravitation, was instrumental in the scientific revolution of the 17th century.
1643-1727
19th-century German philosopher Friedrich Nietzsche radically questioned widely held cultural beliefs and is best known for his "God is dead" concept.
1844-1900