Gwenni Mackay

Gwenni Mackay

Modified & Updated: 28 Jan 2024


April 9th is a day filled with historical significance, as numerous important events and remarkable facts have unfolded on this date throughout history. From groundbreaking scientific discoveries to monumental political events and notable births and deaths, April 9th has left an indelible mark on our world.

Exploring the events that took place on this day allows us to delve into the annals of history, gaining insights into the progress, achievements, and struggles of humanity. It reminds us of the individuals who have shaped our world and the moments that have defined civilizations.

In this article, we will take a journey through time, examining the significant events and facts that occurred on April 9th. From ancient civilizations to the modern era, we will uncover the stories and milestones that have made this day special in the course of history.

Table of Contents


  • 1865: The American Civil War effectively ends with the surrender of General Robert E. Lee to Union General Ulysses S. Grant at Appomattox Court House.
  • 1917: The Battle of Arras begins during World War I, with British and Canadian forces launching a major offensive against German positions in northern France.
  • 1940: Germany invades Denmark and Norway during World War II, leading to their subsequent occupation.
  • 1965: The Astrodome, the world’s first multi-purpose domed sports stadium, officially opens in Houston, Texas.
  • 1989: The Solidarity movement holds its first legal demonstration in Poland since martial law was imposed in 1981.


  • 1682: Dutch astronomer Christiaan Huygens discovers Titan, the largest moon of Saturn.
  • 1865: American surgeon Joseph Lister successfully applies antiseptic techniques for the first time during surgery, greatly reducing infection rates.
  • 1959: NASA’s Mercury-7 astronauts are introduced to the public, marking the start of the U.S. manned spaceflight program.
  • 1967: The first Boeing 737 makes its maiden flight, revolutionizing short-haul air travel.
  • 1991: The World Wide Web becomes publicly available as a service on the internet.


  • 1388: Timurid conqueror Timur defeats the Ottoman forces in the Battle of Kosovo, strengthening his influence in the region.
  • 1867: The United States Senate ratifies the Treaty of Cession, officially purchasing Alaska from Russia.
  • 1948: The Organization of American States (OAS) is established, promoting economic, social, and political cooperation among American countries.
  • 1992: The Bosnian War begins as Bosnian Serb forces launch an offensive against Bosniak and Croat civilians in the town of Bijeljina.
  • 2013: Former British Prime Minister Margaret Thatcher passes away at the age of 87.


  • 1865: Mark Twain publishes “The Celebrated Jumping Frog of Calaveras County,” his first successful short story.
  • 1942: The film “Casablanca,” starring Humphrey Bogart and Ingrid Bergman, premieres in New York City.
  • 1969: The rock band The Beatles release their hit single “Get Back.”
  • 1999: The animated television series “SpongeBob SquarePants” premieres on Nickelodeon.
  • 2017: The musical “Hamilton” wins the Pulitzer Prize for Drama, recognizing its groundbreaking blending of American history and hip-hop music.


  • 1821: Charles Baudelaire, French poet and critic.
  • 1932: Carl Perkins, American singer-songwriter and guitarist.
  • 1954: Dennis Quaid, American actor and producer.
  • 1966: Cynthia Nixon, American actress and activist.
  • 1990: Kristen Stewart, American actress.


  • 1917: Henry Ford’s mother, Mary Ford, passes away at the age of 84.
  • 1976: Phil Ochs, American folk singer-songwriter and political activist, dies by suicide at the age of 35.
  • 1991: David Lean, English film director and producer known for films like “Lawrence of Arabia” and “Doctor Zhivago,” passes away at the age of 83.
  • 2005: Prince Rainier III of Monaco, ruler of Monaco for over 55 years, dies at the age of 81.
  • 2013: Annette Funicello, American actress and singer known for her role in the Mickey Mouse Club, passes away at the age of 70.


April 9th has been witness to numerous significant historical events, scientific breakthroughs, political milestones, cultural events, and the birth and death of notable individuals. From the surrender that marked the end of the American Civil War, to the establishment of the Organization of American States and the birth of the World Wide Web, this date holds a diverse range of events that have shaped our world.


Q: What other major historical events occurred on April 9th?
A: Some other major historical events that occurred on April 9th include the signing of the Treaty of Tordesillas in 1494, the first public performance of Handel’s “Messiah” in 1742, and the unveiling of the first modern electric tram in Richmond, Virginia, in 1888.

Q: Are there any famous birthdays on April 9th?
A: Yes, there are several notable individuals born on April 9th, including Scottish actor Ewan McGregor, former First Lady of the United States Michelle Obama, and Ukrainian boxer and politician Vitali Klitschko.

Q: Were there any significant scientific discoveries made on April 9th?
A: Yes, on April 9th, 1956, American physicist John Bardeen and his team announced the discovery of the theory of superconductivity, which led to later breakthroughs in the field.