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Biographies of scientists, thinkers, and builders — lives documented from primary records.

William Shakespeare

William Shakespeare (baptised 26 April 1564 at Stratford-upon-Avon; died there 23 April 1616) was an English poet, playwright, and actor. The documentary record — the Holy Trinity parish register, the 1616 will held by The National Archives as PROB 1/4, land and tax records, and the printed quartos — documents his baptism, his marriage to Anne Hathaway in November 1582, three children, and a London career that is first mentioned in print in 1592, when he is mocked as a 'Shake-scene'. He became an actor, playwright, and sharer in the Lord Chamberlain's Men, renamed the King's Men in 1603, and a co-owner of the Globe playhouse, built in 1599 from the timbers of The Theatre and rebuilt in 1614 after a cannon misfired during a performance of Henry VIII. Besides roughly 38 plays, he published two narrative poems — Venus and Adonis (1593) and The Rape of Lucrece (1594) — and a quarto of 154 sonnets (1609). No manuscripts survive; about half of the plays, including Julius Caesar, Macbeth, and The Tempest, first appeared in the First Folio of 1623, assembled by his fellow actors John Heminge and Henry Condell. The Folger Shakespeare Library holds the largest collection of First Folios in the world, and The National Archives holds more than 120 documents of his life, about 40 of them on the UNESCO Memory of the World Register. Scholarly consensus, based on that record, is that the man from Stratford wrote the works published under his name; the 'authorship question' is a debate that began in the Victorian period, not in his lifetime.

25/25 claims verified 16 min read·

Martin Luther King Jr.

Martin Luther King Jr. (15 January 1929 – 4 April 1968) was a Baptist minister who led the modern American civil-rights movement from December 1955 until his assassination in Memphis. He directed the 385-day Montgomery bus boycott, co-founded the Southern Christian Leadership Conference, led the Birmingham campaign that produced the "Letter from Birmingham Jail," and spoke to more than 200,000 people at the March on Washington, where he delivered "I Have a Dream." His campaigns helped force passage of the Civil Rights Act of 1964 and the Voting Rights Act of 1965; he received the Nobel Peace Prize in 1964. In 1968 he was shot at the Lorraine Motel while supporting striking sanitation workers in Memphis.

25/25 claims verified 18 min read·

Napoleon

Napoleon Bonaparte (15 August 1769, Ajaccio, Corsica — 5 May 1821, Longwood, Saint Helena) was a French general and statesman: first consul of France from 1799 to 1804 and emperor of the French from 1804 to 1814/15. Born in Corsica a year after its cession to France, he emerged from the Revolutionary army — artillery commander at Toulon in 1793 and commander of the Army of Italy in 1796 — and took power in the coup of 18 Brumaire (9 November 1799), which replaced the Directory with a three-person Consulate. His civil code was promulgated on 21 March 1804 and became the main influence on the civil codes of most of continental Europe and Latin America. The Empire, created by a Sénatus-consulte of 18 May 1804, was consecrated by his self-coronation at Notre-Dame on 2 December 1804 and secured by Austerlitz a year later. The Russian campaign of 1812 — about 455,000 men crossing the Niemen against some 280,000 Russians, and 45,000 Russian casualties at Borodino — destroyed his army. He abdicated in 1814, returned from Elba for the Hundred Days, and was finally defeated at Waterloo on 18 June 1815. On Saint Helena he shaped his legend in memoirs and in a will asking to rest on the banks of the Seine; his death on 5 May 1821 has been debated for two centuries, and a consortium of gastrointestinal pathologists concluded that the autopsy reports point to advanced gastric cancer with upper gastrointestinal bleeding.

25/25 claims verified 17 min read·

Steve Jobs

Steve Jobs (1955–2011) co-founded Apple Computer with Steve Wozniak in 1976 and led the Macintosh, iPod, iPhone and iPad. Driven out in 1985, he founded NeXT and bought Pixar from Lucasfilm before returning to Apple in 1996–97 and reshaping the music, phone and tablet industries. He resigned as CEO in August 2011 and died of pancreatic cancer on 5 October 2011, aged 56.

25/25 claims verified 13 min read·

Muhammad Ali

Muhammad Ali was born Cassius Marcellus Clay Jr. in Louisville, Kentucky, on January 17 1942 and died in Scottsdale, Arizona, on June 3 2016 at the age of 74. He took up boxing at 12 under the Louisville policeman Joe Martin and won the light-heavyweight gold medal at the Rome Olympics in 1960, turning professional weeks later. On February 25 1964 he upset Sonny Liston for the heavyweight championship; days after the fight he announced his membership in the Nation of Islam and, on March 6 1964, he was given the name Muhammad Ali by Elijah Muhammad. After defending the title — Britannica counts 19 successful defenses of the heavyweight title across his career — he refused induction into the U.S. Army on April 28 1967 on religious grounds at the height of the Vietnam War, was stripped of his titles and boxing licenses, convicted of draft evasion on June 20 1967, and barred from the ring for three and a half years. He returned in October 1970; on March 8 1971 he lost the Fight of the Century to Joe Frazier by unanimous decision, and on June 28 1971 the Supreme Court unanimously reversed his conviction in Clay v. United States. He regained the heavyweight title by knocking out George Foreman in the eighth round in Kinshasa on October 30 1974 (the Rumble in the Jungle), beat Frazier again in the Thrilla in Manila on October 1 1975, lost the title to Leon Spinks in February 1978 and became the first three-time heavyweight champion by beating Spinks on September 15 1978. After two further defeats — Larry Holmes in 1980 and Trevor Berbick on December 11 1981 — he retired with a record of 56-5 and 37 knockouts. Diagnosed with Parkinson syndrome in 1984, he lit the Olympic cauldron in Atlanta on July 19 1996 and devoted his last decades to humanitarian work; an estimated 100,000 people lined the streets of Louisville at his funeral in June 2016.

25/25 claims verified 18 min read·

Mahatma Gandhi

Mohandas Karamchand Gandhi (1869–1948) was an Indian lawyer who became the leader of the Indian Independence Movement against British rule and the twentieth century's best-known practitioner of nonviolent resistance, satyagraha. Thrown off a first-class carriage in Pietermaritzburg in 1893, he spent two decades in South Africa organising the Indian community before returning to India in 1915. He led the Champaran and Kheda satyagrahas, the Rowlatt protests of 1919, the noncooperation movement of 1920–22, the Salt March of 1930, and the Quit India Movement of 1942, spending years in prison and fasting to end communal violence. He was never awarded the Nobel Peace Prize despite twelve nominations, and was assassinated by Nathuram Godse on 30 January 1948, months after India won independence through a partition he opposed. Gandhi Jayanti, his 2 October birthday, is a national holiday in India and the UN's International Day of Non-Violence.

25/25 claims verified 16 min read·

Isaac Newton

Isaac Newton (25 December 1642 [4 January 1643, New Style], Woolsthorpe, Lincolnshire — 20 March 1727, London; aged 84) was an English physicist and mathematician and the culminating figure of the Scientific Revolution. Admitted to Trinity College, Cambridge, in 1661, he spent the plague years 1665–67 at Woolsthorpe, where he established the fundamentals of the calculus, separated white light by refraction and — as he later told William Stukeley — began thinking about gravity when he saw an apple fall. Elected a Fellow of the Royal Society in 1672 after his reflecting telescope caused a sensation, he quarrelled with Robert Hooke over light and (in a 1676 letter) wrote that if he had seen further it was by “standing on the sholders of Giants”. Prompted by Edmond Halley in 1684, he sent the tract De Motu, which in two and a half years grew into Philosophiae Naturalis Principia Mathematica, published in July 1687 entirely at Halley’s expense; its three laws of motion and law of universal gravitation made it, in Britannica’s words, one of the most important works in the history of modern science. Warden of the Mint from 1696 and Master from Christmas Day 1699, President of the Royal Society from 1703 and knighted in 1705, he died unmarried at Kensington on 20 March 1727 and lies in Westminster Abbey, where Rysbrack’s monument shows him among instruments, coins and books. His alchemical and theological manuscripts — over which he waged a bitter priority dispute with Leibniz — became public largely after World War II, and his scientific papers are now a UNESCO Memory of the World collection.

25/25 claims verified 15 min read·

Alexander the Great

Alexander III of Macedon (356–323 BCE) became king of Macedonia in 336 BCE at the age of twenty and, across twelve years of campaigning, overthrew the Achaemenid Persian Empire, carried Macedonian arms to Egypt and the Indus, and laid the foundations of the Hellenistic world of territorial kingdoms. The ancient accounts — Arrian, Plutarch, Diodorus, and Curtius Rufus — were written centuries after his death and blend documented campaign history with legend, so this profile separates what the primary texts and modern reference sources attest from the stories that grew up around him.

25/25 claims verified 15 min read·

Wolfgang Amadeus Mozart

Wolfgang Amadeus Mozart (born 27 January 1756 in Salzburg; died 5 December 1791 in Vienna) was an Austrian composer, widely recognized as one of the greatest in the history of Western music. His father Leopold, a violinist and deputy Kapellmeister, taught him as a small child: Mozart composed his first piece in 1761, at five, and by six had performed before two imperial courts. From mid-1763 the family toured western Europe for three years; in London, under the influence of Johann Christian Bach, Mozart wrote his first symphonies (K 16, K 19, K 19a). In 1769 he was appointed honorary Konzertmeister at the Salzburg court and set out for Italy, where he heard and transcribed from memory Allegri's Miserere, was made a knight of the Golden Spur, and saw his opera Mitridate premiered in Milan on 26 December 1770. After breaking with Archbishop Colloredo in 1781 he settled in Vienna, where Figaro (1786), Don Giovanni (1787), Così fan tutte (1790) and The Magic Flute (1791) were staged and where he was appointed court Kammermusicus in 1787. He wrote more than 600 works, numbered since 1862 in Ludwig von Köchel's chronological catalogue; Mozart himself kept a thematic catalogue of his own works from February 1784, now held by the British Library. He died in December 1791 while the Requiem, K 626, was still unfinished; it was completed by his pupil Süssmayr. The Vienna register certified 'severe miliary fever'; Britannica states plainly that there is no evidence he was poisoned by Salieri or anyone else, and the film Amadeus is described by Britannica itself as largely fictionalized.

25/25 claims verified 18 min read·

Nikola Tesla

Nikola Tesla (1856–1943) was a Serbian American inventor and engineer, born in Smiljan to a Serbian family and educated at Graz and Prague. He discovered and patented the rotating magnetic field and developed the polyphase alternating-current system that George Westinghouse bought in 1888 — the system that lit the 1893 Chicago World's Fair and carried Niagara's power to Buffalo in 1896. He invented the Tesla coil (1891), held the radio patents that the U.S. Supreme Court upheld over Marconi in 1943, demonstrated the world's first radio-controlled vessel (1898), and conducted the Colorado Springs and Wardenclyffe experiments on wireless power. He died in New York in debt, and his archive — 163,911 call numbers — is preserved in the Nikola Tesla Museum in Belgrade, inscribed by UNESCO in the Memory of the World Register in 2003.

24/24 claims verified 19 min read·

Nelson Mandela

Nelson Mandela (18 July 1918 – 5 December 2013) was a South African anti-apartheid leader, a prisoner for more than 27 years, and the first Black president of South Africa (1994–99). Born into the Madiba clan at Mvezo in the Eastern Cape, he was expelled from Fort Hare after a student protest, joined the ANC in 1944, helped found its Youth League and, with Oliver Tambo, South Africa's first Black law firm. After the Sharpeville massacre of 1960 and the banning of the ANC, he helped establish the armed wing Umkhonto we Sizwe, went underground, and was sentenced to life imprisonment at the Rivonia Trial in 1964. Released on 11 February 1990, he negotiated the end of apartheid with President F.W. de Klerk; the two shared the 1993 Nobel Peace Prize. He voted for the first time in his life in April 1994, was inaugurated on 10 May 1994, stepped down in 1999, and died at his home in Johannesburg on 5 December 2013.

25/25 claims verified 17 min read·

Amelia Earhart

Amelia Earhart (1897–1937) was an American aviator and one of the most celebrated pilots of the 20th century. She became the first woman to fly across the Atlantic by air in 1928 (as a passenger), then the first woman to fly solo nonstop across the Atlantic in 1932, and the first person to fly solo from Hawaii to the U.S. mainland in 1935. She set record after record in her red Lockheed Vega, helped found the Ninety-Nines, taught at Purdue University — which helped fund her Lockheed Electra — and in 1937 set out with navigator Fred Noonan to circle the globe at the equator. On July 2, 1937, their Electra vanished near Howland Island after a final radio message to the Coast Guard cutter Itasca. The U.S. Navy and Coast Guard conducted one of the great air-sea searches of the era; no trace was ever found. The documentary record — including recently declassified files at the National Archives — is the reliable guide to both the flight and the mystery.

25/25 claims verified 17 min read·

Frida Kahlo

Frida Kahlo (born July 6, 1907, Coyoacán, Mexico — died July 13, 1954, Coyoacán) was a Mexican painter best known for her uncompromising, brilliantly colored self-portraits dealing with identity, the human body and death. In 1925, at eighteen, the bus she was riding home from school collided with a trolley: multiple fractures of the spine, right leg, collarbone, ribs and pelvis, a dislocated shoulder, a crushed foot, and an abdomen punctured by an iron handrail. She taught herself to paint while bedridden, using a mirror fixed above her bed, and underwent more than thirty medical procedures in the following decades. In 1929 she married the muralist Diego Rivera — they divorced in 1939 and remarried in 1940 — and the couple hosted Leon Trotsky at her family home, the Casa Azul, from 1937. Breton promoted her work as self-taught surrealism; her first solo exhibition came at New York's Julien Levy Gallery in November 1938, and in 1939 the French state bought The Frame, making her the first 20th-century Mexican artist in its collection. Her most famous works — The Two Fridas (1939), Self-Portrait with Cropped Hair (1940), The Broken Column (1944) and Viva la Vida (1954, painted days before her death at 47) — are now divided among Mexico's museums and MoMA. The Casa Azul opened as a museum in July 1958; her reputation, dismissed in her lifetime as secondary to Rivera's, grew into what critics call 'Fridamania'. In November 2025 her painting El Sueño (The Dream) sold for $54.7 million — the highest auction price ever paid for a work by a woman.

25/25 claims verified 16 min read·

Charles Darwin

Charles Robert Darwin (1809–1882) was an English naturalist whose theory of evolution by natural selection became the foundation of modern evolutionary studies. Born in Shrewsbury, he studied medicine at Edinburgh and graduated from Christ's College, Cambridge, before joining HMS Beagle in 1831 as a self-financed gentleman companion to Captain Robert FitzRoy. Five years of surveying and collecting — South America, the Galápagos, the Pacific — made him famous as a geologist and collector; privately, from July 1837, he filled notebooks with 'transmutation' of species, finding his mechanism after reading Malthus in September 1838. Married to his cousin Emma Wedgwood from 1839, he settled at Down House in Kent in 1842, published his Beagle journal and worked for eight years on barnacles, then began the 'big book' on Natural Selection. The shock of Alfred Russel Wallace's 1858 essay forced a joint announcement at the Linnean Society, followed in November 1859 by On the Origin of Species — 1,250 copies, sold out on the day, and an argument that split Victorian opinion. The Descent of Man (1871), plant books, and a final study of earthworms followed. He died at Down on 19 April 1882 and was buried in Westminster Abbey, near Newton. Fellow of the Royal Society (1839), Royal Medal (1853) and Copley Medal (1864).

25/25 claims verified 16 min read·

Albert Einstein

Albert Einstein (1879–1955) was a German-born theoretical physicist whose work transformed modern physics. In 1905 he published landmark papers on the light quantum, Brownian motion, and special relativity, and in 1916 completed the general theory of relativity, confirmed by the 1919 eclipse expeditions. He received the Nobel Prize in Physics for 1921 — awarded for the law of the photoelectric effect — and spent his final decades at the Institute for Advanced Study in Princeton.

25/25 claims verified 13 min read·

Marie Curie

Marie Curie (1867–1934), born Maria Skłodowska in Warsaw, was a physicist and chemist whose work on radioactivity transformed science. Together with her husband Pierre, she isolated the elements polonium and radium, and shared the 1903 Nobel Prize in Physics with Henri Becquerel. In 1911 she received a second Nobel Prize, in Chemistry — the first person to be awarded the prize twice. She was also the first woman to hold a professorship at the Sorbonne.

25/25 claims verified 10 min read·

Ibn al-Haytham

Abū ʿAlī al-Ḥasan ibn al-Haytham (c. 965–c. 1040), known in Latin Europe as Alhazen, was a mathematician, astronomer, and physicist who worked in Basra and in Fatimid Cairo. His seven-volume Kitāb al-Manāẓir (Book of Optics), composed around 1011–1021, argued that vision occurs when light rays reflected from objects enter the eye — overturning the ancient emission theory of Euclid and Ptolemy — and combined systematic experiment with geometrical reasoning. He wrote on reflection and refraction, discussed the camera obscura, framed the problem of reflection on curved mirrors that still bears his Latinized name, and criticized Ptolemy's astronomy. His Optics reached the Latin West in translation and shaped the optics of Roger Bacon, Witelo, and Johannes Kepler. His life is documented only through late and contradictory accounts — notably the 13th-century historian Ibn al-Qifṭī — so the Nile episode, the feigned madness, and popular claims that he 'invented the scientific method' must be handled with care.

25/25 claims verified 15 min read·

Ada Lovelace

Ada Lovelace (1815–1852), born Augusta Ada Byron, was an English mathematician and the only legitimate daughter of the poet Lord Byron. After meeting Charles Babbage in 1833, she became the closest intellectual partner of his work on the Analytical Engine, a general-purpose programmable computer designed in the 1830s but never built. In 1843 she published her translation of Luigi Menabrea's account of the Engine together with extensive Notes of her own — including Note G, an algorithm for computing Bernoulli numbers that is widely regarded as the first published computer program, though the extent and originality of her contribution remain debated. She married William King in 1835, becoming Countess of Lovelace in 1838, and died of cancer in 1852 at the age of 36. The programming language Ada, standardized for the U.S. Department of Defense as MIL-STD-1815, is named after her.

25/25 claims verified 12 min read·

Leonardo da Vinci

Leonardo da Vinci (15 April 1452 – 2 May 1519), born at Anchiano near Vinci in the Republic of Florence to unmarried parents — his father Ser Piero a Florentine notary, his mother Caterina a young woman of debated identity — was apprenticed at about fifteen to Andrea del Verrocchio, painted the angel of the Baptism of Christ, and was admitted to Florence's painters' guild in 1472. From 1482 to 1500 he served the Sforza court in Milan as painter and engineer, where he painted the Last Supper (1495–98) — an experimental tempera-on-dry-wall work that began flaking within years and was coated with later retouches until a 20-year restoration completed in 1999. Back in Florence he began the Mona Lisa about 1503, kept it unfinished until his death, and worked on anatomy in two documented campaigns (c. 1490 and 1506–13), dissecting about thirty human corpses; the anatomical treatise was never published in his lifetime. He died at Cloux (Clos-Lucé) in France on 2 May 1519, leaving more than 10,000 notebook pages to Francesco Melzi; the sheets were later bound by Pompeo Leoni into the Codex Atlanticus (Ambrosiana, Milan) and the Windsor volumes (Royal Collection, c. 550 drawings), while the Codex Leicester toured the Uffizi in 2018–19. Only 17 of his surviving paintings can be definitely attributed to him, and the attribution of works such as Salvator Mundi — sold in 2017 for $450.3 million — remains contested.

25/25 claims verified 16 min read·

Cleopatra

Cleopatra VII Thea Philopator (born 70/69 BCE — died August 30 BCE, Alexandria; some timelines give 12 August) was the last queen of the Ptolemaic dynasty, the Macedonian-Greek house founded by Ptolemy I Soter that ruled Egypt from 323 BCE until its annexation by Rome in 30 BCE. She came to the throne in 51 BCE on the death of her father Ptolemy XII Auletes and ruled successively with her brothers Ptolemy XIII (51–47) and Ptolemy XIV (47–44) and her son Ptolemy XV Caesar, called Caesarion (44–30). Restored to power with Caesar's help after the Alexandrian war, she visited Rome (46–44 BCE) and was there when Caesar was assassinated; Caesar never married her, and whether he fathered Caesarion cannot now be known. In 41 BCE she met Mark Antony at Tarsus; they had three children, and after Antony divorced Octavia she was his partner in the eastern Mediterranean until Octavian's propaganda war and the naval defeat at Actium (2 September 31 BCE). Antony killed himself on 1 August 30 BCE after a false report of her death; Cleopatra died weeks later. The ancient accounts of her death — the asp in a basket of figs, poison, or, as some modern scholars have hypothesized, murder by Octavian's agents — contradict one another, and only the Roman triumph's effigy gives the story of the snake a firm place in the record. Plutarch documents her command of many languages and her learning; the seductress of Roman propaganda has increasingly been read by scholarship as a working monarch of a diminished kingdom.

25/25 claims verified 21 min read·