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History · Rankings

The 40 Figures Who Changed the World, Ranked

Forty prophets, philosophers and founders whose ideas outlived their empires — each scored on four axes, ranked by total civilizational impact.

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How the ranking works: every figure is scored from 1 to 10 on four axes — breadth of humans affected, depth of civilizational change, durability across centuries, and enablement of further invention or discovery — for a total out of 40. The order follows the totals; no position is arranged.
RankNameDatesScoreImpact in one line
#1Jesus of Nazarethc. 4 BCE–c. 30 CE40/40Christianity, founded on his life and death, became the world's largest religion — some 2.4 billion adherents — and the principal shaper of…
#2Prophet Muhammad570–63240/40Islam, founded on Muhammad's life and the Qur'an, became the world's second-largest religion — some two billion adherents — and the…
#3Siddhartha Gautama (Buddha)c. 563–483 BCE39/40Buddhism became the first universal spiritual tradition to spread across Asia by persuasion rather than conquest, today counting some 500…
#4Confucius551–479 BCE37/40Confucianism governed more human lives, for longer, than any other political philosophy in history.
#5Aristotle384–322 BCE37/40Aristotle's logic was the undisputed instrument of rational thought for two thousand years, from the Stoics through medieval scholasticism…
#6Plato428/427–348/347 BCE37/40Plato founded Western philosophy as an institution and as a method: the Academy was the first university, and the dialogue the first…
#8Socrates470–399 BCE36/40Socrates turned philosophy from speculation about nature into the examination of human life — ethics, as a discipline, begins with him.
#11Constantine the Greatc. 272–33735/40Constantine's legalization of Christianity — and his patronage that made it the empire's favored religion — redirected the course of…
#12Martin Luther1483–154635/40Luther's Reformation permanently broke the religious unity of Western Christendom, creating the Catholic-Protestant divide that structured…
#13John Locke1632–170435/40Locke supplied the philosophical operating system of liberal democracy.
#14Laozi6th century BCE (legendary)34/40The Tao Te Ching founded Taoism, China's indigenous counter-philosophy to Confucian order — the tradition of spontaneity, nature, and…
#15René Descartes1596–165034/40Descartes founded modern rationalism and, with it, the modern conception of the thinking subject — the autonomous "I" that grounds…
#17Augustus63 BCE–14 CE33/40Augustus invented the imperial system that governed the Mediterranean world for half a millennium: the principate — monarchy disguised as…
#18Julius Caesar100–44 BCE33/40Caesar ended the Roman Republic and made the Empire inevitable: his crossing of the Rubicon is history's archetype of the irreversible…
#19Napoleon Bonaparte1769–182133/40Napoleon's Code civil is the most influential legal text of the modern era: the foundation of the civil-law tradition now governing most of…
#21Genghis Khan1162–122732/40The Mongol Empire was the largest contiguous land empire ever assembled — some 9 million square miles — and its Pax Mongolica reconnected…
#22Abraham Lincoln1809–186532/40Lincoln preserved the United States as a single nation — without his leadership the Confederacy likely survives, and North America becomes…
#23Immanuel Kant1724–180432/40Kant's Copernican revolution permanently restructured philosophy: the distinction between phenomena and things-in-themselves, and the…
#24Mahatma Gandhi1869–194832/40Gandhi invented satyagraha — nonviolent mass resistance as a systematic political weapon — and thereby gave the twentieth century its most…
#26Jean-Jacques Rousseau1712–177832/40Rousseau supplied modern democracy with its foundational doctrine: popular sovereignty.
#30George Washington1732–179931/40Washington invented the peaceful transfer of power as a political fact.
#32Mao Zedong1893–197631/40Mao unified China after a century of fragmentation and foreign domination, creating the People's Republic that governs a quarter of…
#33Vladimir Lenin1870–192431/40Lenin created the institutional template of twentieth-century revolution: the vanguard party, democratic centralism, and the strategy of…
#35Ashoka304–232 BCE30/40Ashoka's edicts are the earliest surviving declaration by a ruler of religious tolerance as state policy, predating European equivalents by…
#36Alexander the Great356–323 BCE30/40Alexander created the Hellenistic age: three centuries in which Greek became the lingua franca of the eastern Mediterranean and the Near…
#37Charlemagne742–81430/40Charlemagne's empire became the political template of medieval Europe: the union of Frankish kingship, Roman imperial title, and Christian…
#40Voltaire1694–177830/40Voltaire made the Enlightenment a mass movement rather than a philosophers' seminar.
#46Niccolò Machiavelli1469–152729/40Machiavelli founded political science by separating the study of power from theology and moral sermonizing.
#50Franklin D. Roosevelt1882–194529/40Roosevelt's New Deal permanently transformed the American state: Social Security, federal deposit insurance, securities regulation, labor…
#52Otto von Bismarck1815–189828/40Bismarck unified Germany, creating the central fact of modern European history: a powerful, industrial nation-state in Europe's middle that…
#55Sun Tzuc. 544–496 BCE27/40The Art of War founded the study of strategy as a discipline distinct from mere tactics — the idea that wars are won by positioning…
#58Nelson Mandela1918–201327/40Mandela's negotiated revolution created the template for peaceful democratic transition: his insistence on talks with the apartheid regime…
#61Suleiman the Magnificent1494–156626/40Suleiman's codification of Ottoman law created one of history's most durable imperial legal orders — a written, centrally administered…
#62Simón Bolívar1783–183026/40Bolívar's campaigns destroyed Spanish imperial power in South America, creating five independent nations — Venezuela, Colombia, Ecuador…
#65Martin Luther King Jr.1929–196826/40King's movement produced the two great legislative achievements of modern American equality: the Civil Rights Act of 1964 and the Voting…
#68Hammurabic. 1810–1750 BCE25/40Hammurabi's Code established the idea that law must be written, public, and uniform — the seed of the rule of law.
#82Winston Churchill1874–196524/40Churchill's defiance in 1940 kept Britain in the war, and thereby kept the war winnable: without an unsurrendered Britain there is no base…
#83Saladin1137–119323/40Saladin's recapture of Jerusalem in 1187 ended eighty-eight years of Crusader rule over the holy city and reunited the Muslim Near East…
#84Cyrus the Greatc. 600–530 BCE23/40Cyrus invented the imperial formula that would run the ancient world for a thousand years: a single sovereign authority ruling through…
#85Mansa Musac. 1280–c. 133723/40Mansa Musa's Hajj of 1324 was the single most effective act of African self-presentation in the medieval world: it put Mali — and West…
How did Christianity conquer Rome?How did humans tame fire?How did Islam expand so fast?AE — Country ProfileAfghanistan — Country ProfileAlbania — Country ProfileHistory of AE — TimelineHistory of Afghanistan — Timeline

Across the Bureau

How did Christianity conquer Rome?How did humans tame fire?How did Islam expand so fast?AE — Country ProfileAfghanistan — Country ProfileAlbania — Country ProfileHistory of AE — TimelineHistory of Afghanistan — Timeline