On This Day · The 111th day of the year

April 21

A look at April 21 through the almanac — historic events, famous birthdays including Manuel Blanco Encalada and Max Weber, and the day's notable deaths and observances.

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Events

10 notable moments
  1. 2021

    Indonesian Navy

    Indonesian Navy submarine KRI Nanggala (402) sinks in the Bali Sea during a military drill, killing all 53 on board.

    Maritime service branch of
  2. 2010

    Kharkiv Pact

    The controversial Kharkiv Pact (Russian Ukrainian Naval Base for Gas Treaty) is signed in Kharkiv, Ukraine, by Ukrainian president Viktor Yanukovych and Russian president Dmitry Medvedev; it was unilaterally terminated by Russia on March 31, 2014.

    2010 treaty between Ukraine
  3. 1993

    La Paz

    The Supreme Court in La Paz, Bolivia, sentences former dictator Luis García Meza to 30 years in jail without parole for murder, theft, fraud and violating the constitution.

    Seat of government of
  4. 1962

    Century 21 Exposition

    The Seattle World's Fair (Century 21 Exposition) opens. It is the first World's Fair in the United States since World War II.

    World's fair held in
  5. 1960

    Brasília

    Brasília, Brazil's capital, is officially inaugurated. At 09:30, the Three Powers of the Republic are simultaneously transferred from the old capital, Rio de Janeiro.

    Federal capital of Brazil
  6. 1958

    United Air Lines Flight 736

    United Air Lines Flight 736 collides with a United States Air Force fighter jet near Arden, Nevada in what is now Enterprise, Nevada.

    1958 mid-air collision in
  7. 1945

    World War II

    World War II: Soviet forces south of Berlin at Zossen attack the German High Command headquarters.

    1939–1945 global conflict
  8. 1918

    World War I

    World War I: German fighter ace Manfred von Richthofen, better known as "The Red Baron", is shot down and killed over Vaux-sur-Somme in France.

    1914–1918 global conflict
  9. 1789

    George Washington's reception at Trenton

    George Washington's reception at Trenton is hosted by the Ladies of Trenton as he journeys to New York City for his first inauguration.

    Event on April 21,
  10. 1615

    Wignacourt Aqueduct

    The Wignacourt Aqueduct is inaugurated in Malta.

    17th-century aqueduct in Malta
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Famous birthday twins

Born on April 21

Manuel Blanco Encalada

b. 1790

Spanish-Chilean admiral and politician, 1st President of Chile

Max Weber

b. 1864

German economist and sociologist

Elizabeth II

b. 1926

Queen of the United Kingdom and her other realms

Tony Romo

b. 1980

American football player and announcer

Toby Stephens

b. 1969

English actor

Jean-Baptiste Biot

b. 1774

French physicist, astronomer, and mathematician

Freddie Dixon

b. 1892

English motorcycle racer and racing driver

Paul Karrer

b. 1889

Russian-Swiss chemist and academic, Nobel Prize laureate

Deaths

  • 2016Prince (musician), American singer-songwriter, guitarist, producer, and actor
  • 1918Manfred von Richthofen, German captain and pilot, known popularly as the Red Baron
  • 1910Mark Twain, American novelist, humorist, and critic
  • 1699Jean Racine, French playwright and poet
  • 1142Peter Abelard, French philosopher and theologian
  • 234Emperor Xian of Han, Chinese emperor

Holidays & observances

  • Christian feast day: Abdecalas
  • Christian feast day: Anastasius Sinaita
  • Christian feast day: Anselm of Canterbury
  • Christian feast day: Conrad of Parzham
  • Christian feast day: Holy Infant of Good Health
  • Christian feast day: Máel Ruba
  • Christian feast day: Shemon Bar Sabbae
  • Christian feast day: Wolbodo

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