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Catholic contributions to civilization

Faith, reason, science, and human achievement

Catholics, clergy, religious orders, and Catholic institutions have discovered, invented, formulated, and founded a great deal. They have not done it alone. This list says what a person did, and it does not say the Catholic Church invented everything.

Did you know? Gregor Mendel, an Augustinian friar, worked out the first statistical laws of heredity from pea plants.

217 entries

• Astronomy & Cosmology

  Georges Lemaître

  Priest · 1894–1966

  Developed. The mathematics of an expanding universe and the primeval-atom hypothesis, a foundation of modern Big Bang cosmology.

• Biology & Genetics

  Gregor Mendel

  Friar · 1822–1884

  Formulated. Statistical principles of heredity from pea-plant experiments, foundational to genetics.

• Astronomy & Cosmology

  Nicolaus Copernicus

  Canon · 1473–1543

  Formulated. A mathematical model with the Sun at the centre of the planetary system.

• Geology & Earth Science

  Nicolas Steno

  Bishop · 1638–1686

  Pioneered. Principles of strata, fossils, and how sedimentary rock is laid down.

• Science & Scientific Method

  Roger Bacon

  Friar · c. 1214–c. 1292

  Pioneered. A programme of observation, experiment, and mathematics in the study of nature.

• Science & Scientific Method

  Albert the Great

  Bishop and friar · c. 1200–1280

  Developed. A wide natural philosophy: animals, plants, minerals, and the heavens.

• Science & Scientific Method

  Robert Grosseteste

  Bishop · c. 1175–1253

  Pioneered. The use of mathematics and controlled observation, especially in light and optics.

• Science & Scientific Method

  Jean Buridan

  Cleric · c. 1300–c. 1358

  Developed. The impetus theory of motion, a step beyond Aristotle toward later mechanics.

• Science & Scientific Method

  Nicole Oresme

  Bishop · c. 1320–1382

  Developed. Graphical ways of thinking about changing quantities, and arguments about the motion of the Earth.

• Science & Scientific Method

  Marin Mersenne

  Friar · 1588–1648

  Pioneered. A network of correspondence that tied the mathematicians of Europe together, and work on primes and on music.

• Science & Scientific Method

  Pierre Gassendi

  Priest · 1592–1655

  Developed. An atomic philosophy reconciled, as he saw it, with Christian creation, and astronomical observation.

• Physics

  Roger Boscovich

  Priest · 1711–1787

  Formulated. A theory of matter as points of force, used by later physicists.

• Science & Scientific Method

  Athanasius Kircher

  Priest · 1602–1680

  Developed. Encyclopaedic studies of magnetism, music, languages, and geology, some of them wrong and some of them fertile.

• Astronomy & Cosmology

  Galileo Galilei

  Lay Catholic · 1564–1642

  Pioneered. Telescopic astronomy and the mathematical study of motion.

• Astronomy & Cosmology

  Christopher Clavius

  Priest · 1538–1612

  Developed. The Gregorian calendar’s astronomical basis, and Jesuit mathematical education.

• Astronomy & Cosmology

  Christoph Scheiner

  Priest · 1573–1650

  Discovered. Sunspots, independently, and the rotation of the Sun.

• Astronomy & Cosmology

  Giovanni Battista Riccioli

  Priest · 1598–1671

  Developed. A lunar map whose names are still used, and careful experiments on falling bodies.

• Astronomy & Cosmology

  Giovanni Domenico Cassini

  Lay Catholic · 1625–1712

  Discovered. The division in Saturn’s rings and several Saturnian moons, and he organised the Paris Observatory.

• Astronomy & Cosmology

  Giuseppe Piazzi

  Priest · 1746–1826

  Discovered. Ceres, the first asteroid, in 1801.

• Astronomy & Cosmology

  Angelo Secchi

  Priest · 1818–1878

  Pioneered. The classification of stars by their spectra.

• Physics

  Victor Hess

  Lay Catholic · 1883–1964

  Discovered. Cosmic rays, by balloon flights. Nobel Prize in Physics, 1936.

• Astronomy & Cosmology

  Ferdinand Verbiest

  Priest · 1623–1688

  Developed. The imperial observatory in Beijing and a reformed Chinese calendar.

• Astronomy & Cosmology

  Johann Adam Schall von Bell

  Priest · 1591–1666

  Developed. Calendar reform at the Chinese court.

• Geography & Cartography

  Matteo Ricci

  Priest · 1552–1610

  Pioneered. A map of the world for Chinese scholars, and a lasting intellectual mission.

• Geography & Cartography

  Jose de Acosta

  Priest · 1540–1600

  Developed. A natural and moral history of the Indies, including altitude sickness and the geography of the Americas.

• Biology & Genetics

  Marcello Malpighi

  Lay Catholic · 1628–1694

  Discovered. Capillaries, and the microscopic structure of the lung, kidney, and skin.

• Biology & Genetics

  Lazzaro Spallanzani

  Priest · 1729–1799

  Developed. Experiments against spontaneous generation, and studies of digestion and fertilisation.

• Biology & Genetics

  Theodor Schwann

  Lay Catholic · 1810–1882

  Formulated. The cell theory for animals, with others working on plants.

• Biology & Genetics

  Erich Wasmann

  Priest · 1859–1931

  Developed. Studies of ants and their guests, and a Catholic engagement with evolution that was not simple rejection.

• Biology & Genetics

  Jerome Lejeune

  Lay Catholic · 1926–1994

  Discovered. The chromosomal cause of Down syndrome (trisomy 21).

• Medicine

  Charles Nicolle

  Lay Catholic · 1866–1936

  Discovered. That typhus is transmitted by the body louse. Nobel Prize, 1928.

• Medicine

  Corneille Heymans

  Lay Catholic · 1892–1968

  Discovered. How the carotid sinus helps regulate breathing and blood pressure. Nobel Prize, 1938.

• Medicine

  Carlos Finlay

  Lay Catholic · 1833–1915

  Pioneered. The hypothesis that yellow fever is carried by a mosquito.

• Physics

  Francesco Maria Grimaldi

  Priest · 1618–1663

  Discovered. The diffraction of light.

• Physics

  Andre-Marie Ampere

  Lay Catholic · 1775–1836

  Formulated. The mathematical theory of electromagnetism that gave the ampere its name.

• Physics

  Alessandro Volta

  Lay Catholic · 1745–1827

  Invented. The electric pile, the first battery.

• Medicine

  Luigi Galvani

  Lay Catholic · 1737–1798

  Discovered. Animal electricity, by experiment on frogs.

• Physics

  Jean-Baptiste Biot

  Lay Catholic · 1774–1862

  Developed. Studies of polarised light and of the magnetism of the Earth.

• Physics

  Augustin Fresnel

  Lay Catholic · 1788–1827

  Developed. The wave theory of light and the lens that still carries his name.

• Physics

  Leon Foucault

  Lay Catholic · 1819–1868

  Invented. A pendulum that shows the rotation of the Earth, and a method for measuring the speed of light.

• Physics

  Hippolyte Fizeau

  Lay Catholic · 1819–1896

  Developed. A terrestrial measurement of the speed of light.

• Physics

  Henri Becquerel

  Lay Catholic · 1852–1908

  Discovered. Radioactivity in uranium salts. Nobel Prize with the Curies, 1903.

• Physics

  Evangelista Torricelli

  Lay Catholic · 1608–1647

  Invented. The mercury barometer.

• Physics

  Josef Stefan

  Lay Catholic · 1835–1893

  Formulated. The Stefan–Boltzmann law of radiation, with Boltzmann.

• Physics

  Gaspard-Gustave de Coriolis

  Lay Catholic · 1792–1843

  Formulated. The Coriolis force in rotating systems.

• Physics

  Joseph von Fraunhofer

  Lay Catholic · 1787–1826

  Discovered. Dark lines in the solar spectrum, and he made the instruments that showed them.

• Chemistry

  Amedeo Avogadro

  Lay Catholic · 1776–1856

  Formulated. The hypothesis that equal volumes of gases, at the same temperature and pressure, hold equal numbers of molecules.

• Chemistry

  Victor Grignard

  Lay Catholic · 1871–1935

  Invented. The Grignard reagent, a way of building organic molecules. Nobel Prize, 1912.

• Chemistry

  Jean-Baptiste Dumas

  Lay Catholic · 1800–1884

  Developed. Methods for measuring vapour density and for organic analysis.

• Chemistry

  Michel Eugene Chevreul

  Lay Catholic · 1786–1889

  Developed. The chemistry of fats and soaps, and a theory of colour contrast.

• Chemistry

  Henri Louis Le Chatelier

  Lay Catholic · 1850–1936

  Formulated. Le Chatelier’s principle on how equilibria shift.

• Chemistry

  Paul Sabatier

  Lay Catholic · 1854–1941

  Developed. Catalytic hydrogenation. Nobel Prize, 1912, with Grignard.

• Chemistry

  Julius Nieuwland

  Priest · 1878–1936

  Developed. The chemistry that led to neoprene, the synthetic rubber.

• Chemistry

  Edith Flanigen

  Lay Catholic · 1929–

  Invented. Synthetic emerald and molecular sieves used across the chemical industry.

• Chemistry

  Jean-Baptiste Senderens

  Priest · 1856–1937

  Developed. Catalytic hydrogenation with Sabatier.

• Mathematics

  Maria Gaetana Agnesi

  Lay Catholic · 1718–1799

  Developed. A clear textbook of calculus, the Instituzioni analitiche, and the curve that still carries her name.

• Mathematics

  Pierre de Fermat

  Lay Catholic · 1607–1665

  Formulated. Foundations of number theory, and work that became probability with Pascal.

• Mathematics

  Blaise Pascal

  Lay Catholic · 1623–1662

  Invented. A calculating machine, and, with Fermat, the mathematics of probability.

• Mathematics

  Augustin-Louis Cauchy

  Lay Catholic · 1789–1857

  Developed. A rigorous calculus: limits, continuity, and complex functions.

• Mathematics

  Bernard Bolzano

  Priest · 1781–1848

  Pioneered. A rigorous account of continuity and infinity, ignored until later.

• Mathematics

  Charles Hermite

  Lay Catholic · 1822–1901

  Formulated. The proof that e is transcendental, and the polynomials that carry his name.

• Mathematics

  Camille Jordan

  Lay Catholic · 1838–1922

  Developed. The theory of finite groups and the Jordan curve theorem.

• Mathematics

  Emile Picard

  Lay Catholic · 1856–1941

  Developed. Theorems in complex analysis that still carry his name.

• Mathematics

  Gregorio Ricci-Curbastro

  Lay Catholic · 1853–1925

  Developed. Tensor calculus, the language Einstein later used.

• Mathematics

  Vincenzo Riccati

  Priest · 1707–1775

  Developed. Hyperbolic functions and work on differential equations.

• Mathematics

  Ennio De Giorgi

  Lay Catholic · 1928–1996

  Developed. The theory of minimal surfaces and solutions of elliptic equations.

• Mathematics

  Charles de la Vallee-Poussin

  Lay Catholic · 1866–1962

  Formulated. A proof of the prime-number theorem, independently of Hadamard.

• Mathematics

  Jacques Binet

  Lay Catholic · 1786–1856

  Formulated. Binet’s formula for Fibonacci numbers, and work on matrix theory.

• Mathematics

  Bonaventura Cavalieri

  Priest · 1598–1647

  Developed. The method of indivisibles, a step toward integral calculus.

• Mathematics

  Giovanni Girolamo Saccheri

  Priest · 1667–1733

  Pioneered. A study of the parallel postulate that opened the road to non-Euclidean geometry, though he meant to close it.

• Geology & Earth Science

  Giuseppe Mercalli

  Priest · 1850–1914

  Developed. A scale of earthquake intensity still named for him.

• Geology & Earth Science

  Antonio Stoppani

  Priest · 1824–1891

  Pioneered. Italian geology, and an early sense that human activity marks the Earth.

• Geology & Earth Science

  Jose Celestino Mutis

  Priest · 1732–1808

  Developed. The botanical expedition of New Granada and a vast record of American plants.

• Geology & Earth Science

  Xavier Le Pichon

  Lay Catholic · 1937–

  Developed. A quantitative model of plate tectonics.

• Geology & Earth Science

  James Macelwane

  Priest · 1883–1956

  Pioneered. Jesuit seismology in the United States and the study of earthquakes as a profession.

• Medicine

  Andreas Vesalius

  Lay Catholic · 1514–1564

  Developed. A new anatomy from dissection, in De humani corporis fabrica.

• Medicine

  Giovanni Battista Morgagni

  Lay Catholic · 1682–1771

  Founded. Pathological anatomy: disease read from what is found in the body after death.

• Medicine

  Rene Laennec

  Lay Catholic · 1781–1826

  Invented. The stethoscope.

• Medicine

  Ignaz Semmelweis

  Lay Catholic · 1818–1865

  Discovered. That handwashing cuts childbed fever.

• Medicine

  Joseph Murray

  Lay Catholic · 1919–2012

  Pioneered. The first successful human kidney transplant between twins, and later work on immunosuppression. Nobel Prize, 1990.

• Hospitals & Nursing

  John of God

  Saint · 1495–1550

  Founded. A hospital in Granada and the family of brothers who still nurse the sick.

• Hospitals & Nursing

  Camillus de Lellis

  Saint · 1550–1614

  Founded. An order of clerics who nurse the sick, including on battlefields.

• Charity & Social Institutions

  Vincent de Paul

  Saint · 1581–1660

  Founded. The Congregation of the Mission and, with Louise de Marillac, the Daughters of Charity.

• Hospitals & Nursing

  Louise de Marillac

  Saint · 1591–1660

  Founded. The Daughters of Charity, with Vincent de Paul.

• 

  Philosophy & Logic

  Thomas Aquinas

  Friar · 1225–1274

  Developed. A synthesis of Christian doctrine and Aristotelian philosophy in the Summa.

• Philosophy & Logic

  Augustine of Hippo

  Bishop · 354–430

  Developed. A theology of grace, time, and the inner life that the West has never put down.

• 

  Universities & Education

  Ignatius of Loyola

  Saint · 1491–1556

  Founded. The Society of Jesus, and a method of schools that spread with the order.

• Universities & Education

  John Baptist de La Salle

  Saint · 1651–1719

  Founded. The Brothers of the Christian Schools, for the education of poor boys, with a teacher-training practice ahead of its time.

• Universities & Education

  Joseph Calasanz

  Saint · 1557–1648

  Founded. The Piarist schools, free schooling for poor children in Rome.

• Universities & Education

  Angela Merici

  Saint · 1474–1540

  Founded. The Company of Saint Ursula, for the education of girls in their own towns.

• Universities & Education

  Medieval universities

  Institution · —–—

  Helped establish. A form of higher study — arts, theology, law, medicine — in which the Church was a major founder and protector, alongside kings, cities, and masters.

• Computing & Technology

  John von Neumann

  Baptised late in life · 1903–1957

  Developed. The stored-program computer architecture, game theory, and large parts of modern mathematical physics.

• Computing & Technology

  Charles Kuen Kao

  Lay Catholic · 1933–2018

  Pioneered. Fibre-optic communication. Nobel Prize in Physics, 2009.

• Computing & Technology

  Clemens Roothaan

  Priest · 1918–2019

  Developed. Methods of molecular calculation used in quantum chemistry.

• Computing & Technology

  Mary Kenneth Keller

  Religious sister · 1913–1985

  Pioneered. Early computer-science education for undergraduates, and one of the first doctorates in the field in the United States.

• Engineering & Inventions

  Antonio Pacinotti

  Lay Catholic · 1841–1912

  Invented. A ring armature that became a step toward the dynamo and the electric motor.

• Art & Architecture

  Filippo Brunelleschi

  Lay Catholic · 1377–1446

  Developed. The dome of Florence Cathedral and a practical perspective for builders.

• Art & Architecture

  Leon Battista Alberti

  Lay Catholic · 1404–1472

  Developed. Treatises on painting and on building that taught the Renaissance its rules.

• Art & Architecture

  Fra Angelico

  Friar · c. 1395–1455

  Developed. Altarpieces and the frescoes at San Marco, a major body of Catholic painting.

• Art & Architecture

  Michelangelo Buonarroti

  Lay Catholic · 1475–1564

  Developed. The Sistine ceiling, the Last Judgement, the Pietà, and the dome of Saint Peter’s.

• Art & Architecture

  Gian Lorenzo Bernini

  Lay Catholic · 1598–1680

  Developed. The colonnade of Saint Peter’s, the baldacchino, and the Ecstasy of Saint Teresa.

• Art & Architecture

  Raphael

  Lay Catholic · 1483–1520

  Developed. The Stanze, the Sistine Madonna, and cartoons for tapestries in the Sistine Chapel.

• Art & Architecture

  Michelangelo Merisi da Caravaggio

  Lay Catholic · 1571–1610

  Developed. Altarpieces that set the Gospel in a hard, ordinary light.

• Art & Architecture

  Leonardo da Vinci

  Lay Catholic · 1452–1519

  Developed. The Last Supper, and notebooks of anatomy, water, and machines.

• Law & Human Rights

  Francisco de Vitoria

  Friar · c. 1483–1546

  Developed. Lectures on the rights of peoples and on the limits of war and conquest, the start of the School of Salamanca.

• Law & Human Rights

  Francisco Suarez

  Priest · 1548–1617

  Developed. A major treatise on law, and a metaphysics taught for two centuries.

• Economics & Accounting

  Luis de Molina

  Priest · 1535–1600

  Developed. An account of free will and grace, and an economic analysis of money and prices in the School of Salamanca.

• Law & Human Rights

  Bartolome de las Casas

  Friar and bishop · 1484–1566

  Pioneered. A public case against the destruction of the peoples of the Indies.

• Economics & Accounting

  Luca Pacioli

  Friar · c. 1447–1517

  Developed. The first widely printed account of double-entry bookkeeping.

• Economics & Accounting

  Martin de Azpilcueta

  Priest · 1492–1586

  Developed. A quantity theory of money: prices rise when money is plentiful.

• Economics & Accounting

  Juan de Mariana

  Priest · 1536–1624

  Developed. A critique of kings who debase the coinage.

• Music

  Guido of Arezzo

  Monk · c. 991–after 1033

  Developed. Staff notation and the solmisation syllables that became the scale.

• Music

  Hildegard of Bingen

  Abbess · 1098–1179

  Developed. A body of chant, and writings on medicine, visions, and the natural world.

• Music

  Giovanni Pierluigi da Palestrina

  Lay Catholic · c. 1525–1594

  Developed. The Roman style of polyphony that the Church kept as a model.

• Music

  Gregorian chant

  Tradition · —–—

  Developed. The Latin chant of the Roman rite, shaped over centuries in Roman and Frankish monasteries.

• Philosophy & Logic

  William of Ockham

  Friar · c. 1287–1347

  Developed. A logic and a metaphysics of economy, later called Ockham’s razor, and a political theory of papal and imperial power.

• 

  Charity & Social Institutions

  Francis of Assisi

  Saint · 1181–1226

  Founded. The Friars Minor, a way of life built on poverty and the preaching of the Gospel.

• Charity & Social Institutions

  Benedict of Nursia

  Saint · c. 480–c. 547

  Founded. A Rule for monasteries that organised work, prayer, and stability.

• Philosophy & Logic

  Anselm of Canterbury

  Bishop · 1033–1109

  Formulated. The ontological argument, and a theology of the atonement in Cur Deus homo.

• 

  Philosophy & Logic

  Bonaventure

  Friar · 1221–1274

  Developed. A Franciscan theology of the journey of the mind to God.

• Philosophy & Logic

  John Duns Scotus

  Friar · c. 1266–1308

  Developed. A metaphysics of individuality, and a defence of the Immaculate Conception before it was defined.

• Universities & Education

  Bede

  Monk · 673–735

  Developed. An ecclesiastical history of the English, and textbooks of time and of Scripture.

• Universities & Education

  Isidore of Seville

  Bishop · c. 560–636

  Developed. An encyclopedia, the Etymologies, that carried classical learning into medieval schools.

• Philosophy & Logic

  Boethius

  Lay Christian · c. 477–524

  Developed. Translations and textbooks of logic, and The Consolation of Philosophy.

• Music

  Tomas Luis de Victoria

  Priest · c. 1548–1611

  Developed. Polyphonic Masses and motets, including the Officium Defunctorum.

• Music

  Orlande de Lassus

  Lay Catholic · 1532–1594

  Developed. A vast body of Catholic polyphony for the Bavarian court.

• Music

  Gregorio Allegri

  Priest · 1582–1652

  Developed. The Miserere sung in the Sistine Chapel in Holy Week.

• Music

  Claudio Monteverdi

  Priest · 1567–1643

  Pioneered. Opera, and the Vespers of 1610, a summit of Catholic ceremonial music.

• Music

  Antonio Vivaldi

  Priest · 1678–1741

  Developed. Hundreds of concertos, and sacred music including the Gloria.

• Music

  Joseph Haydn

  Lay Catholic · 1732–1809

  Developed. The symphony and the string quartet as public forms, and Masses for the Catholic liturgy.

• Music

  Wolfgang Amadeus Mozart

  Lay Catholic · 1756–1791

  Developed. Operas, symphonies, and the Requiem and Masses of a Catholic composer.

• Music

  Ludwig van Beethoven

  Baptised Catholic · 1770–1827

  Developed. The symphony as a public moral drama, and the Missa solemnis.

• Music

  Franz Schubert

  Lay Catholic · 1797–1828

  Developed. Songs, symphonies, and Masses.

• Music

  Anton Bruckner

  Lay Catholic · 1824–1896

  Developed. Symphonies and sacred choral works, including a Te Deum.

• Music

  Franz Liszt

  Cleric in minor orders · 1811–1886

  Developed. The symphonic poem, and late sacred works including the Via crucis.

• Music

  Cesar Franck

  Lay Catholic · 1822–1890

  Developed. Organ works and sacred music at the Parisian church of Sainte-Clotilde.

• Music

  Edward Elgar

  Lay Catholic · 1857–1934

  Developed. The Dream of Gerontius, a setting of Newman’s poem of a Catholic death.

• Music

  Antonin Dvorak

  Lay Catholic · 1841–1904

  Developed. Symphonies, Slavonic dances, and a Stabat Mater and Requiem.

• Music

  Olivier Messiaen

  Lay Catholic · 1908–1992

  Developed. Organ music and the Quartet for the End of Time, written from a theology of Catholic time.

• Music

  Maurice Durufle

  Lay Catholic · 1902–1986

  Developed. A Requiem built on Gregorian chant.

• Music

  Charles Gounod

  Lay Catholic · 1818–1893

  Developed. Faust, and sacred songs including a setting built on Bach’s prelude.

• Music

  Lorenzo Perosi

  Priest · 1872–1956

  Developed. Oratorios that Pius X’s generation hoped would renew church music.

• Charity & Social Institutions

  Frederic Ozanam

  Lay Catholic · 1813–1853

  Founded. The Society of Saint Vincent de Paul.

• 

  Charity & Social Institutions

  John Bosco

  Saint · 1815–1888

  Founded. The Salesians, for the education of poor and working boys.

• 

  Charity & Social Institutions

  Frances Cabrini

  Saint · 1850–1917

  Founded. The Missionary Sisters of the Sacred Heart, and a network of hospitals, schools, and orphanages.

• Hospitals & Nursing

  Damien de Veuster

  Saint · 1840–1889

  Pioneered. A priest’s life among the leprosy patients of Molokai, until he caught the disease.

• 

  Universities & Education

  Elizabeth Ann Seton

  Saint · 1774–1821

  Founded. The Sisters of Charity in the United States, and a Catholic school tradition for girls.

• 

  Charity & Social Institutions

  Teresa of Calcutta

  Saint · 1910–1997

  Founded. The Missionaries of Charity, houses for the dying, the abandoned, and the unborn.

• Exploration

  Junipero Serra

  Saint · 1713–1784

  Founded. The Franciscan missions of Upper California.

• Exploration

  Eusebio Kino

  Priest · 1645–1711

  Pioneered. Maps and missions in the Pimería Alta, and the proof that California was not an island.

• Exploration

  Jacques Marquette

  Priest · 1637–1675

  Pioneered. The European exploration of the Mississippi with Louis Jolliet.

• Exploration

  Christopher Columbus

  Lay Catholic · 1451–1506

  Pioneered. The Atlantic crossing of 1492 that opened a sustained European route to the Americas.

• Exploration

  Ferdinand Magellan

  Lay Catholic · 1480–1521

  Pioneered. The expedition that first circled the Earth, completed after his death.

• Art & Architecture

  Dante Alighieri

  Lay Catholic · 1265–1321

  Developed. The Divine Comedy, a poem of Hell, Purgatory, and Heaven that shaped Catholic imagination.

• Law & Human Rights

  Thomas More

  Saint · 1478–1535

  Developed. Utopia, and a lawyer’s refusal to swear a supremacy he believed false.

• Philosophy & Logic

  John Henry Newman

  Cardinal · 1801–1890

  Developed. The idea of the development of doctrine, and The Idea of a University.

• Philosophy & Logic

  G. K. Chesterton

  Lay Catholic · 1874–1936

  Developed. A body of essays defending Christian reason for a newspaper public.

• Art & Architecture

  J. R. R. Tolkien

  Lay Catholic · 1892–1973

  Developed. The Lord of the Rings, a work of imagination shaped by a Catholic mind.

• Art & Architecture

  Gerard Manley Hopkins

  Priest · 1844–1889

  Developed. A new poetic metre and a Catholic poetry of creation.

• Art & Architecture

  Sigrid Undset

  Lay Catholic · 1882–1949

  Developed. Kristin Lavransdatter, a novel of medieval Catholic life. Nobel Prize in Literature, 1928.

• Art & Architecture

  Flannery O'Connor

  Lay Catholic · 1925–1964

  Developed. Stories of grace acting on violent and ordinary people in the American South.

• Philosophy & Logic

  Thomas Merton

  Monk · 1915–1968

  Developed. The Seven Storey Mountain and a modern monastic literature.

• Physics

  Laura Bassi

  Lay Catholic · 1711–1778

  Pioneered. A university career in experimental physics for a woman, at Bologna.

• Biology & Genetics

  Louis Pasteur

  Lay Catholic · 1822–1895

  Developed. Vaccines and the germ theory of fermentation and disease, with a team and with predecessors.

• Medicine

  Charles Louis Alphonse Laveran

  Lay Catholic · 1845–1922

  Discovered. The parasite of malaria. Nobel Prize, 1907.

• Medicine

  Alexis Carrel

  Lay Catholic · 1873–1944

  Developed. A technique for suturing blood vessels. Nobel Prize, 1912.

• Medicine

  John Eccles

  Lay Catholic · 1903–1997

  Developed. The understanding of the synapse. Nobel Prize, 1963.

• Physics

  Carlo Rubbia

  Lay Catholic · 1934–

  Pioneered. The discovery of the W and Z bosons at CERN. Nobel Prize, 1984.

• Physics

  Antonino Zichichi

  Lay Catholic · 1929–

  Developed. Experimental particle physics, and a public argument that science and the Catholic Faith are not enemies.

• Science & Scientific Method

  Stanley Jaki

  Priest · 1924–2009

  Developed. A historical argument about why the natural sciences grew in a Christian culture.

• Physics

  Pierre Duhem

  Lay Catholic · 1861–1916

  Developed. Thermodynamics, and a history of medieval science that later scholars still use.

• Geology & Earth Science

  Pierre Teilhard de Chardin

  Priest · 1881–1955

  Developed. Fieldwork on human fossils in China, including the study of Peking Man, and a controversial theology of evolution.

• Biology & Genetics

  Georges-Louis Leclerc, Comte de Buffon

  Lay Catholic · 1707–1788

  Developed. The Histoire naturelle, a vast description of animals and of the age of the Earth.

• Biology & Genetics

  Francesco Redi

  Lay Catholic · 1626–1697

  Pioneered. Controlled experiments against the spontaneous generation of maggots.

• Medicine

  Gabriele Falloppio

  Priest · 1523–1562

  Discovered. The tubes that carry his name, and other structures of the ear and the reproductive organs.

• Medicine

  Bartolomeo Eustachi

  Lay Catholic · c. 1500–1574

  Discovered. The Eustachian tube and other anatomical structures, published fully only later.

• Biology & Genetics

  Andrea Cesalpino

  Lay Catholic · 1519–1603

  Developed. A classification of plants by their fruit and flower, and an early account of the circulation.

• Medicine

  Santorio Santorio

  Lay Catholic · 1561–1636

  Invented. A clinical thermometer and a quantitative study of the body’s weight.

• Medicine

  Giovanni Alfonso Borelli

  Lay Catholic · 1608–1679

  Developed. A mechanics of muscle and animal motion.

• Universities & Education

  Elena Cornaro Piscopia

  Lay Catholic · 1646–1684

  Pioneered. A doctorate in philosophy at Padua in 1678, the first woman known to receive a PhD.

• Mathematics

  Gerbert of Aurillac

  Pope · c. 946–1003

  Developed. Teaching of the abacus and of Arabic numerals in Latin Europe, before he became Pope Sylvester II.

• Universities & Education

  Alcuin of York

  Cleric · c. 735–804

  Developed. The school programme of Charlemagne’s court, and textbooks of the liberal arts.

• Universities & Education

  Cassiodorus

  Lay Catholic, later monk · c. 485–c. 585

  Founded. The monastery of Vivarium, where books were copied and a Christian education was set out.

• Biology & Genetics

  Fabio Colonna

  Lay Catholic · 1567–1640

  Developed. Botanical description with careful plates, a member of the Accademia dei Lincei.

• Physics

  Niccolo Cabeo

  Priest · 1586–1650

  Developed. Experiments on magnetism and on the repulsion of electrified bodies.

• Engineering & Inventions

  Francesco Lana de Terzi

  Priest · 1631–1687

  Pioneered. A design for a lighter-than-air boat, never flown, and a proposal for a blind alphabet.

• Astronomy & Cosmology

  Giovanni Schiaparelli

  Lay Catholic · 1835–1910

  Discovered. The association of meteor showers with comets, and the maps of Mars that later readers misread as canals.

• 

  Exploration

  Francis Xavier

  Priest · 1506–1552

  Pioneered. The Jesuit missions in India, the Malay archipelago, and Japan.

• Exploration

  Jose de Anchieta

  Priest · 1534–1597

  Founded. Schools and towns in Brazil, and a grammar of Tupi.

• Charity & Social Institutions

  Peter Claver

  Priest · 1580–1654

  Pioneered. A ministry to enslaved Africans landing at Cartagena, for forty years.

• 

  Hospitals & Nursing

  Martin de Porres

  Friar · 1579–1639

  Developed. A clinic for the poor and sick in Lima, from a Dominican convent.

• Chemistry

  Antoine Lavoisier

  Lay Catholic · 1743–1794

  Developed. A new chemical nomenclature and the oxygen theory of combustion, with collaborators.

• Philosophy & Logic

  Rene Descartes

  Lay Catholic · 1596–1650

  Developed. Analytic geometry, and a philosophy that starts from the thinking self.

• Exploration

  Amerigo Vespucci

  Lay Catholic · 1454–1512

  Developed. Letters arguing that the lands across the Atlantic were a continent, not the edge of Asia.

• Exploration

  Vasco da Gama

  Lay Catholic · c. 1460–1524

  Pioneered. The sea route from Europe to India around the Cape.

• Exploration

  Henry the Navigator

  Lay Catholic · 1394–1460

  Pioneered. Patronage of Atlantic voyages along the African coast, from a court that was also a crusading order.

• Music

  Adolphe Sax

  Lay Catholic · 1814–1894

  Invented. The saxophone.

• Music

  Frederic Chopin

  Lay Catholic · 1810–1849

  Developed. A new piano literature, and a request for Mozart’s Requiem at his Catholic funeral.

• Music

  Arcangelo Corelli

  Lay Catholic · 1653–1713

  Developed. The concerto grosso and a school of violin playing.

• Music

  Giovanni Battista Pergolesi

  Lay Catholic · 1710–1736

  Developed. The Stabat Mater, and comic opera that changed the stage.

• Music

  Marc-Antoine Charpentier

  Lay Catholic · 1643–1704

  Developed. Sacred music for Jesuit churches and a Te Deum still used as a public hymn.

• Music

  Francis Poulenc

  Lay Catholic · 1899–1963

  Developed. The opera Dialogues des Carmélites and a body of sacred choral music after a return to the Faith.

• Music

  Manuel de Falla

  Lay Catholic · 1876–1946

  Developed. Atlántida, left unfinished, and a Spanish concert music shaped by Catholic culture.

• Music

  Gioachino Rossini

  Lay Catholic · 1792–1868

  Developed. Opera, and the Petite messe solennelle.

• Music

  Gaetano Donizetti

  Lay Catholic · 1797–1848

  Developed. Italian opera, including works on Catholic historical subjects.

• Music

  Vincenzo Bellini

  Lay Catholic · 1801–1835

  Developed. Bel canto opera.

• Music

  Giacomo Puccini

  Lay Catholic · 1858–1924

  Developed. La bohème, Tosca, Madama Butterfly, and Turandot.

• Music

  Domenico Scarlatti

  Lay Catholic · 1685–1757

  Developed. More than five hundred keyboard sonatas.

• Music

  James MacMillan

  Lay Catholic · 1959–

  Developed. Orchestral and sacred music explicitly shaped by the Catholic liturgy.

• Music

  Gabriel Faure

  Lay Catholic · 1845–1924

  Developed. The Requiem, and a French song literature.

• Music

  Francois Couperin

  Lay Catholic · 1668–1733

  Developed. Keyboard ordres and organ music for the French royal chapel.

• Astronomy & Cosmology

  Pope Gregory XIII

  Pope · 1502–1585

  Developed. The Gregorian calendar reform of 1582, calculated by a commission that included Christopher Clavius.

• Law & Human Rights

  Pope Leo XIII

  Pope · 1810–1903

  Developed. Rerum novarum, on the condition of labour, wages, and the right of workers to associate.

• Universities & Education

  Robert Bellarmine

  Cardinal · 1542–1621

  Developed. A widely used catechism and a body of controversial theology taught in Catholic schools.

• Universities & Education

  Peter Canisius

  Priest · 1521–1597

  Developed. A catechism that carried Catholic teaching through German-speaking lands after the Reformation.

• 

  Universities & Education

  Francis de Sales

  Bishop · 1567–1622

  Developed. Introduction to the Devout Life, a spirituality for lay people in ordinary work.

• Charity & Social Institutions

  Philip Neri

  Priest · 1515–1595

  Founded. The Oratory in Rome, a way of preaching, music, and confession for the city.

These entries document contributions made by Catholics, Catholic clergy, religious orders and Catholic institutions. They do not mean that every achievement was uniquely or exclusively Catholic. Scientific, cultural and intellectual developments usually involve many people across different cultures, religions and periods. This database aims to identify Catholic contributions accurately and without exaggeration.