Wednesday, October 21, 2026

Today in History - Britannica.com/on-this-day/

 

Oct 21


Magellan finds a route to the Pacific
Ferdinand Magellan was not the first European to sight the Pacific Ocean; he wasn’t the first to name it either, but his was the name that stuck. And on this day he became the first European sailor to find a sea route to the Pacific—the Tierra del Fuego—the strait that now bears his name.
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October 21, 1520: Here's how the Pacific Ocean got its name
© Three Lions—Hulton Archive/Getty Images; Photo Illustration Encyclopædia Britannica, Inc.
Featured Event
USS Constitution
Aram Boghosian—The Boston Globe/Getty Images
The Constitutionis launched in Boston
On this day in 1797, the Constitution, one of the first frigates built for the U.S. Navy, was launched in Boston. It became known as “Old Ironsides” after it carried U.S. sailors to victory over the British in a naval battle during the War of 1812. [Sort fact from fiction in our quiz about submarines, ships, and other watercraft.]
Featured Biography
Dizzy Gillespie
UPI/Bettmann Archive

Born this day in 1917, Dizzy Gillespie, an American trumpeter, composer, and bandleader, helped to found the modern jazz style known as bebop, and his improvisations also influenced later jazz trumpeters such as Miles Davis.


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Sanae Takaichi
© Prime Minister's Office of Japan
2025
Politician Sanae Takaichi becomes the first woman to be elected prime minister of Japan. [Which countries have had women leaders?]
Julia Louis-Dreyfus smiling and looking over her shoulder on a gold carpet with a patterned background at the Wall Street Journal Magazine 2023 Innovator Awards.
© Andrea Renault—AFP/Getty Images
2018
American actress Julia Louis-Dreyfus, who starred in such sitcoms as Seinfeld and Veep, was officially awarded the Kennedy Center’s Mark Twain Prize for American Humor, the highest award in comedy. [How much do you know about Seinfeld?]
George McGovern, 1972
Warren K. Leffler—U.S. News & World Report Magazine/Library of Congress, Washington, D.C. (LC-DIG-ppmsca-19602)
2012
American politician and liberal activist George McGovern, who ran unsuccessfully as a reformist Democratic challenger in the 1972 presidential race against incumbent Republican President Richard Nixon, died at age 90.
default image
Image: Encyclopædia Britannica, Inc.
1966
A landslide of mining waste destroyed a school in the Welsh village of Aberfan, killing 144 people.
Rex Harrison, Audrey Hepburn, and Wilfrid Hyde-White in formal attire ascend a grand staircase at a ball in a scene from the film My Fair Lady (1964).
© 1964 Warner Brothers, Inc.; photograph from a private collection
1964
The American musical film My Fair Lady, starring Rex Harrison and Audrey Hepburn, had its world premiere, and it later won eight Academy Awards, including that for best picture. [Test your knowledge of the Academy Awards.]
Richard Nixon and John F. Kennedy stand at separate podiums facing each other during their televised presidential debate in a New York studio in 1960.
© Hulton Archive—Archive Photos/Getty Images
1960
John F. Kennedy and Richard Nixon debated for the fourth and final time before the 1960 U.S. presidential election. [Take our U.S. presidents quiz.]
Frank Lloyd Wright: Guggenheim Museum
© Photos.com/Jupiterimages
Ingrid Bergman and Gary Cooper in a scene from the 1943 film For Whom The Bell Tolls, with Bergman holding pots and Cooper seated on rocky ground.
Encyclopædia Britannica, Inc.
1940
American novelist Ernest Hemingway published his classic novel For Whom the Bell Tolls; it was later adapted into an acclaimed film. [Sort fact from fiction in our quiz about famous books.]
Lily Elsie as Sonia and Joseph Coyne as Prince Danilo sit back-to-back on chairs in elegant period costumes in a scene from the 1907 operetta The Merry Widow.
Print Collector—Hulton Archive/Getty Images
1907
Franz Lehár’s operetta The Merry Widow opened in New York City. [How much do you know about the opera?]
Alfred Nobel
© Photos.com/Jupiterimages
1833
Swedish chemist, engineer, and industrialist Alfred Nobel, who invented dynamite and other more powerful explosives and who also founded the Nobel Prizes, was born in Stockholm. [Test your knowledge of the history of the Nobel Prize.]
John Christian Schetky: The Battle of Trafalgar
Yale Center for British Art, Paul Mellon Collection, B1981.25.554
1805
A fleet of 33 ships (18 French and 15 Spanish) under Admiral Pierre-Charles-Jean-Baptiste-Silvestre de Villeneuve fought and was defeated by a British fleet of 27 ships under Admiral Horatio Nelson in the Battle of Trafalgar (combat was waged west of Cape Trafalgar, Spain). [Take our history of warfare quiz.]

Tuesday, October 20, 2026

Today in History - Britannica.com/on-this-day/

 

Oct 20

1984
The Monterey Bay Aquarium opens
On this day in 1984, a former sardine factory on California’s historic Cannery Row began a remarkable new chapter: The Monterey Bay Aquarium opened its doors, transforming a site once devoted to processing fish into a place dedicated to understanding and protecting marine life.
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October 20, 1984: Opening of the world-class aquarium that dared to put the local ocean on display
© Eric Kruszewski/Design Pics Editorial—Universal Images Group/Getty Images; Photo Illustration Encyclopædia Britannica, Inc.
Featured Event
Sydney Opera House
© Michael Hynes
Opening of Sydney Opera House
Australia’s Sydney Opera House—designed by Danish architect Jørn Utzon, whose dynamic, imaginative, and problematic plan won an international competition in 1957—was opened by Queen Elizabeth II on this day in 1973.
Featured Biography
Christiane Nüsslein-Volhard
© Patrick Piel/Gamma Liaison

Christiane Nüsslein-Volhard, a German developmental geneticist who in 1995 was a corecipient of the Nobel Prize for Physiology or Medicine for research into early embryonic development, was born this day in 1942.


More on October 20

Partially demolished facade of the East Wing of the White House with exposed beams, rubble, and construction equipment visible behind a security fence.
© Kevin Dietsch/Getty Images
2025
Demolition of the East Wing of the White House in Washington, D.C., began, in preparation for construction of a ballroom. [How often has the White House been renovated?]
OSIRIS-REx at Bennu
NASA Goddard Space Flight Center
2020
NASA’s OSIRIS-REx collected a sample of rock and dust from the asteroid Bennu—the first time a U.S. spacecraft had done so. [Discover who’s competing in today’s space race.]
Oscar de la Renta smiles at the camera, wearing a dark suit, light blue striped shirt, yellow tie, and matching pocket square at an outdoor event.
Andrew H. Walker/Getty Images Entertainment
2014
Fashion designer Oscar de la Renta—whose work, blending European luxury with American ease, helped define standards of elegant dressing among socialites, U.S. first ladies, and red-carpet celebrities—died in Connecticut. [Test your knowledge of fashion.]
Muammar al-Qaddafi
MC2 Jesse Awalt/U.S. Department of Defense
2011
Muammar al-Qaddafi, the de facto leader of Libya since 1969, was killed by rebel forces following a revolt that ended his rule.
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Image: Encyclopædia Britannica, Inc.
2002
Blue Stream, the deepest underwater pipeline in the world, opened in Turkey and was put in use for the transport of natural gas. [Sort fact from fiction in our quiz about oil and natural gas.]
Gary Rossington, Ronnie Van Zant, and Allen Collins of Lynyrd Skynyrd perform on stage in October 1976, with instruments and microphones visible.
Michael Ochs Archives/Getty Images
1977
A plane carrying the Southern rock band Lynyrd Skynyrd, known for such songs as Free Bird and Sweet Home Alabama, crashed in Gillsburg, Mississippi, killing singer Ronnie Van Zant and guitarist Steve Gaines, among others. [Take our rock and roll quiz.]
Richard Nixon
U.S. Department of Defense
1973
During the ongoing Watergate investigation, U.S. President Richard Nixon ordered special prosecutor Archibald Cox fired, resulting in the resignations of Attorney General Elliot Richardson and Deputy Attorney General William D. Ruckelshaus, both of whom refused to carry out his request; the events became known as the “Saturday Night Massacre” of Justice Department officials. [Read a first-person account of reporting Watergate as it happened.]
Jacqueline Kennedy sits outdoors at a table, smiling and wearing a sleeveless light green dress and pearl earrings, with blurred trees and people in the background.
Michael Ochs Archives/Getty Images
Herbert Hoover, 1928
Library of Congress, Washington D.C. (neg. no. LC-USZ62-24155)
1964
Herbert Hoover, who was president of the United States from 1929 to 1933, died in New York City at age 90. [Learn how Hoover was elected—and what his reputation was before he took office.]
Mickey Mantle
AP/REX/Shutterstock.com
1931
Baseball player Mickey Mantle—who was one of the game’s greatest players, known for his tremendous power as a switch-hitter—was born in Spavinaw, Oklahoma. [Test your knowledge of baseball.]
War of the Pacific
Prismo Archivo/Alamy
1883
Peru and Chile signed the Treaty of Ancón, ending hostilities between the two countries in the War of the Pacific (1879–83). Under the treaty, Peru ceded Tarapacá province to Chile.
Dracula
© John Kobal Foundation— Moviepix/Getty Images
1882
Actor Bela Lugosi—who was famous for his sinister portrayal of the elegantly mannered vampire Count Dracula—was born in Hungary. [Test your knowledge of scary movies.]
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Image: Encyclopædia Britannica, Inc.
1822
The Congress of Verona, the last of the meetings held by the European powers in accordance with the terms of the Quadruple Alliance, opened in Verona, Italy. [Sort fact from fiction in our quiz about European history.]
Map of the United States highlighting the Louisiana Purchase territory in orange, showing the land acquired from France in 1803. The shaded area spans from the Mississippi River westward, covering parts or all of present-day Arkansas, Missouri, Iowa, Oklahoma, Kansas, Nebraska, and portions of Minnesota, North Dakota, South Dakota, New Mexico, Texas, Montana, Wyoming, Colorado, and a small part of Louisiana including New Orleans. Current state and international boundaries are outlined.
Encyclopædia Britannica, Inc.
1803
The U.S. Senate, after due consideration and considerable oratory, ratified the Louisiana Purchase. [Learn how the Louisiana Purchase transformed America.]
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Image: Encyclopædia Britannica, Inc.
Statue of Tokugawa Ieyasu in ornate robes holding a bow, with arrows on his back, at the Tosho-gu shrine in Nikko, Japan.
© Cowardlion/Dreamstime.com
1600
The Battle of Sekigahara established the hegemony of the Tokugawa family in Japan. [Sort fact from fiction in our quiz about Japanese history.]

Today in History - Britannica.com/on-this-day/

  Oct 21 Magellan finds a route to the Pacific Ferdinand Magellan was not the first European to sight the Pacific Ocean ; he wasn’t the fir...