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This Day in History

March 31

"The Eiffel Tower opens and LBJ steps aside."

10 Events
6 Born
4 Died
1889 The Eiffel Tower Opens to the Public
1596

René Descartes

Mathematician and philosopher

René Descartes laid the foundations of modern philosophy with his "Discourse on the Method" and the famous declaration "I think, therefore I am" (cogito, ergo sum). He also invented the Cartesian coordinate system, bridging algebra and geometry and giving mathematics a new language that remains essential to science today.

1685

Johann Sebastian Bach

German Baroque composer and organist

Johann Sebastian Bach composed an astonishing body of sacred and secular music during his lifetime that was largely overlooked after his death, only to be "rediscovered" in the 19th century and recognized as among the greatest achievements in Western music. His "Well-Tempered Clavier," Mass in B Minor, and St. Matthew Passion are cornerstones of the repertoire.

1732

Joseph Haydn

Austrian composer

Joseph Haydn was the "Father of the Symphony" and "Father of the String Quartet," composing 104 symphonies, 68 string quartets, and an enormous body of other works during a career that spanned more than five decades. His profound influence on both Mozart and Beethoven makes him a pivotal figure in Western music history.

1927

César Chávez

Labor leader and civil rights activist

César Chávez co-founded the United Farm Workers union and led years of nonviolent protests, boycotts, and hunger strikes to win better wages and working conditions for agricultural laborers in California and across the United States. His birthday is observed as a public holiday in several U.S. states.

1914

Octavio Paz

Mexican poet and diplomat

Octavio Paz was Mexico's most celebrated 20th-century writer, whose poetry and essays explored Mexican identity, surrealism, and political philosophy. He won the Nobel Prize in Literature in 1990, with the Nobel Committee calling him a voice that gives life to the quest for the truth in our time.

1971

Ewan McGregor

Scottish actor

Ewan McGregor built an extraordinarily diverse career ranging from Trainspotting and Moulin Rouge! to the Star Wars prequel trilogy, in which he played the young Obi-Wan Kenobi, a role he reprised decades later in the Disney+ series.

1492

Spain Issues Edict of Expulsion Against Jews

Ferdinand II and Isabella I signed the Alhambra Decree, ordering all Jews in Spain to convert to Christianity or leave the country within four months. Between 100,000 and 200,000 Jews were expelled, scattering Sephardic Jewish communities across the Ottoman Empire, North Africa, and the Netherlands.

1814

Coalition Forces Occupy Paris, Napoleon's Empire Collapses

The Sixth Coalition — Russia, Prussia, Austria, and their allies — occupied Paris as Napoleon's Grande Armée capitulated, effectively ending the First French Empire and leading directly to Napoleon's abdication and first exile to Elba.

1854

Commodore Perry Opens Japan to American Trade

Commodore Matthew Perry signed the Convention of Kanagawa with Japan, opening two ports to American ships and ending Japan's 200-year policy of national isolation — the first step toward the radical modernization of the Meiji era.

1889

Eiffel Tower Opens in Paris

Gustave Eiffel's iron tower was inaugurated as the centerpiece of the 1889 World's Fair, becoming the world's tallest structure and a symbol that has since become synonymous with France itself.

1918

Daylight Saving Time Begins in the United States

The United States implemented Daylight Saving Time for the first time as a wartime energy-saving measure, setting clocks forward by one hour — a practice that remains deeply divisive more than a century later.

1933

Civilian Conservation Corps Established

President Franklin D. Roosevelt signed legislation creating the Civilian Conservation Corps (CCC), which employed hundreds of thousands of young men during the Great Depression in conservation work — planting trees, building trails, and developing national parks.

1949

Newfoundland Joins Canadian Confederation

Newfoundland and Labrador became Canada's 10th province following a razor-thin referendum victory by the pro-confederation side led by Joseph Smallwood, ending Britain's last major dominion in North America.

1966

Luna 10 Becomes First Spacecraft to Orbit the Moon

The Soviet probe Luna 10 became the first spacecraft to achieve orbit around the Moon, a milestone in the Space Race that came just three years before the first crewed lunar landing.

1968

LBJ Announces He Will Not Seek Re-election

President Lyndon B. Johnson stunned the nation in a televised address by announcing he would not seek or accept his party's nomination for another term as president, effectively conceding that the Vietnam War had made his reelection untenable.

1991

Warsaw Pact Formally Disbands

The Warsaw Pact, the Soviet-led military alliance that had counterbalanced NATO throughout the Cold War, formally dissolved — one of the defining institutional moments marking the end of the Cold War era.

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1727

Isaac Newton

English mathematician and physicist

Isaac Newton died in London at age 84, having spent a lifetime transforming humanity's understanding of the physical world. His "Principia Mathematica" established the laws of motion and universal gravitation; his work on optics revealed the nature of light; and his independent invention of calculus provided mathematics with one of its most powerful tools.

1855

Charlotte Brontë

English novelist and poet

Charlotte Brontë, the eldest of the three literary Brontë sisters and author of "Jane Eyre" — one of the most celebrated novels in the English language — died at age 38, reportedly from complications of pregnancy, just nine months after marrying her father's curate.

1913

J. P. Morgan

American banker and financier

John Pierpont Morgan, the most powerful banker in American history, died in Rome. Morgan had personally financed the U.S. government during the Panic of 1907, organized the creation of U.S. Steel — then the world's first billion-dollar corporation — and assembled one of the greatest private art collections in history.

1631

John Donne

English poet and Anglican priest

John Donne, the foremost metaphysical poet of the English Renaissance, died in London. His poetry — intensely intellectual, emotionally charged, and shot through with religious complexity — includes "Death, Be Not Proud" and "No Man Is an Island," phrases that still resonate centuries later.

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