What happened in 1939

47 entries recorded for 1939, listed by date. That was 87 years ago.

1939 at a glance

Years ago
87 (as of 2026)
Century
20th century
Decade
1930s
Generation born
Silent Generation
Entries here
47
Breakdown
47 historical events

January

  • January 7

    Marguerite Perey

    Historical event

    French physicist Marguerite Perey identified francium, the last element to be discovered in nature rather than by synthesis.

  • January 8

    New Deal for Aborigines

    Historical event

    The New Deal for Aborigines was formally announced by the Australian government, providing for full civil rights for Indigenous Australians in exchange for cultural assimilation.

  • January 14

    Queen Maud Land

    Historical event

    Norway claimed Queen Maud Land, a 2.7-million km2 (1.0-million sq mi) region of Antarctica, as a dependent territory.

  • January 30

    30 January 1939 Reichstag speech

    Historical event

    In a speech to the Reichstag, Adolf Hitler threatened the "annihilation of the Jewish race in Europe".

February

  • February 10

    Spanish Civil War

    Historical event

    Spanish Civil War: The Nationalists concluded their conquest of Catalonia and sealed the border with France.

  • February 25

    Air Raid Precautions

    Historical event

    As part of British air raid precautions, the first of 2.5 million Anderson shelters is constructed in a garden in Islington, north London.

  • February 28

    Lexicography

    Historical event

    In one of the most famous errors in lexicography, the erroneous word dord was discovered in Webster's New International Dictionary by an editor.

March

April

  • April 9

    DAR Constitution Hall

    Historical event

    After being denied permission to perform at Constitution Hall by the Daughters of the American Revolution, African-American singer Marian Anderson gave an open-air concert on the steps of the Lincoln Memorial in Washington, D.C.

  • April 20

    Billie Holiday

    Historical event

    Billie Holiday (pictured) recorded the song "Strange Fruit", which later became an emblem of the civil rights movement.

  • April 20

    Adolf Hitler's 50th birthday

    Historical event

    Adolf Hitler's 50th birthday was celebrated as a national holiday in Nazi Germany.

May

  • May 3

    Subhas Chandra Bose

    Historical event

    Subhas Chandra Bose formed the All India Forward Bloc, a faction within the Indian National Congress, in opposition to Gandhi's tactics of nonviolence.

  • May 14

    Lima

    Historical event

    In Lima, Peru, Lina Medina became the youngest confirmed mother in history, giving birth at the age of five years, seven months and twenty-one days.

  • May 22

    Pact of Steel

    Historical event

    Germany and Italy signed the Pact of Steel, a military and political alliance.

  • May 23

    USS Sailfish (SS-192)

    Historical event

    The U.S. Navy submarine Squalus sank off Portsmouth, New Hampshire, during tests, causing 26 men to drown.

June

  • June 19

    Lou Gehrig

    Historical event

    American baseball player Lou Gehrig (pictured) was diagnosed with amyotrophic lateral sclerosis, now commonly known in the United States as "Lou Gehrig's disease".

  • June 24

    Thai cultural mandates

    Historical event

    The first of the Thai cultural mandates was issued, officially changing the country's name from Siam to Thailand.

July

  • July 28

    Ship burial

    Historical event

    During the excavation of a 7th-century ship burial at Sutton Hoo in Suffolk, England, archaeologists discovered the Sutton Hoo helmet (pictured), widely associated with King Rædwald of East Anglia.

August

  • August 2

    Leo Szilard

    Historical event

    Leo Szilard penned a letter, signed by Albert Einstein and addressed to U.S. president Franklin D. Roosevelt, warning that Germany may develop atomic bombs, leading to the establishment of the Manhattan Project.

  • August 2

    Albert Einstein

    Historical event

    Albert Einstein and Leo Szilard write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon.

  • August 23

    Molotov–Ribbentrop Pact

    Historical event

    Nazi Germany and the Soviet Union signed the Molotov–Ribbentrop Pact (pictured), a ten-year mutual non-aggression treaty, which also secretly divided northern and eastern Europe into German and Soviet spheres of influence.

  • August 31

    Gleiwitz incident

    Historical event

    Nazi forces, posing as Poles, staged an attack against the German radio station Sender Gleiwitz in Gleiwitz, Upper Silesia, Germany, creating an excuse to invade Poland the next day.

September

  • September 1

    World War II

    Historical event

    World War II: Germany and Slovakia invade Poland, beginning the European phase of World War II.

  • September 1

    J. Robert Oppenheimer

    Historical event

    J. Robert Oppenheimer and his student Hartland Snyder publish the Oppenheimer–Snyder model, proving for the first time in contemporary physics how black holes could develop.

  • September 1

    Invasion of Poland

    Historical event

    German forces attacked multiple locations in Poland, including Wieluń and Westerplatte, starting World War II in Europe.

  • September 9

    World War II

    Historical event

    World War II: About 3,000 Polish Army troops began a nearly month-long defence of the Hel Peninsula during the German invasion of Poland.

  • September 17

    World War II

    Historical event

    Second World War: The Royal Navy lost its first warship in the war when German submarine U-29 torpedoed and sank HMS Courageous.

  • September 22

    German–Soviet military parade in Brest-Litovsk

    Historical event

    A joint military parade by the troops of Nazi Germany and the Soviet Union took place in Brest-Litovsk to celebrate their partition of Poland.

  • September 30

    World War II

    Historical event

    Second World War: General Władysław Sikorski (pictured) became the first prime minister of the Polish government-in-exile.

  • September 30

    NBC

    Historical event

    NBC broadcast the first televised American football game, between the Fordham Rams and the Waynesburg Yellow Jackets.

October

  • October 14

    World War II

    Historical event

    Second World War: The German submarine U-47 torpedoed and sank the Royal Navy battleship HMS Royal Oak while the latter was anchored at Scapa Flow in Orkney, Scotland.

  • October 20

    Pope Pius XII

    Historical event

    Pope Pius XII (pictured) published his first encyclical, Summi Pontificatus, which critiqued ideologies such as racism, cultural superiority and totalitarianism.

November

  • November 6

    Intelligenzaktion

    Historical event

    As part of their plan to eradicate the Polish intellectual elite, the Gestapo arrested 184 professors, students and employees of the Jagiellonian University (location pictured) in Kraków.

  • November 9

    World War II

    Historical event

    World War II: A covert Sicherheitsdienst operation captured two British agents of the Secret Intelligence Service near Venlo in the Netherlands.

  • November 26

    Red Army

    Historical event

    The Soviet Red Army shelled the village of Mainila and then claimed that the fire originated from Finland, giving them a casus belli to launch the Winter War a few days later.

December

  • December 12

    HMS Duchess (H64)

    Historical event

    HMS Duchess sinks after a collision with HMS Barham off the coast of Scotland with the loss of 124 men.

  • December 12

    Winter War

    Historical event

    Winter War: The Battle of Tolvajärvi, also known as the first major Finnish victory in the Winter War, begins.

  • December 12

    Royal Navy

    Historical event

    The Royal Navy destroyer HMS Duchess (pictured) collided with HMS Barham, the battleship she was escorting, and Duchess sank with heavy loss of life.

  • December 15

    Epic film

    Historical event

    The American historical epic film Gone With the Wind, adapted from Margaret Mitchell's Pulitzer Prize–winning novel of the same name, premiered in Atlanta, Georgia.

  • December 17

    World War II

    Historical event

    World War II: After sustaining moderate damage in the Battle of the River Plate two days earlier, the German cruiser Graf Spee was scuttled by its commander, Hans Langsdorff, to avoid its internment by Uruguay.

  • December 18

    World War II

    Historical event

    Second World War: The Luftwaffe won a victory over the Royal Air Force in the Battle of the Heligoland Bight, greatly influencing both sides' future aerial warfare strategy.

  • December 22

    All-India Muslim League

    Historical event

    Members of the All-India Muslim League observed a "Day of Deliverance" to celebrate the resignations of members of the Indian National Congress over the decision to enter the Second World War at the request of the United Kingdom.

  • December 27

    1939 Erzincan earthquake

    Historical event

    A magnitude 7.8 earthquake struck central Turkey, destroying 90 per cent of the buildings in the area, and causing over 32,000 deaths.

Questions about 1939

What happened in 1939?

This site records 47 entries for 1939, including Marguerite Perey on January 7. They are listed below by date.

How long ago was 1939?

87 years ago, counting from 2026. Anyone born in 1939 turns 87 this year.

Which century is 1939 in?

1939 falls in the 20th century, in the 1930s.

Which generation was born in 1939?

Silent Generation (1928–1945). Children of the Depression and war years.

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