Explore the full date: Today in History – September 3.
September 3, 1939 | Britain and France Declare War on Germany
On September 3, 1939, Britain and France declared war on Germany, marking the official start of World War II. This momentous decision set the stage for a conflict that would reshape the world and solidify the alliances that defined the war.
WORLD WAR II
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The Auschwitz-Birkenau Sonderkommando Revolt of 7 October 1944
On 7 October 1944, prisoners forced to work around the killing facilities at Auschwitz-Birkenau rose against…
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General Kleeberg Surrenders at Kock on 6 October 1939
On 6 October 1939, General Franciszek Kleeberg’s Independent Operational Group Polesie surrendered after the Battle of…
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Hitler’s Victory Parade in Warsaw on 5 October 1939
On 5 October 1939, Hitler reviewed German troops in devastated Warsaw—a propaganda spectacle that marked the…
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The A-4 Rocket’s First Successful Flight on 3 October 1942
On 3 October 1942, the German army's A-4 rocket completed its first successful test flight at…
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