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1914
August 1, 1914: The outbreak of World War I, leading to global conflict and extensive social, economic, and political upheaval.
1918 -
1918
November 11, 1918: The Armistice of World War I is signed, officially ending the conflict. -
1919
January 19, 1919: The Paris Peace Conference begins, aimed at establishing the post-war order.
June 28, 1919: The Treaty of Versailles is signed, formally ending the state of war between Germany and the Allied Powers. -
1920
The decade of the 1920s, commonly known as the Roaring Twenties, begins. -
1921
The Jazz Age emerges, with musicians like Louis Armstrong and Duke Ellington gaining popularity. -
1922
The discovery of insulin by Canadian scientists Fredrick Banting and Charles Best opens new horizons for diabetes treatment. -
1923
Adolf Hitler becomes the leader of the Nazi Party in Germany. -
1924
The first Winter Olympics are held in Chamonix, France. -
1925
The Scopes Trial in Tennessee tests the constitutionality of teaching evolution in public schools. -
1926
The first talking picture, "The Jazz Singer" with Al Jolson, is released, revolutionizing the film industry. -
1927
Charles Lindbergh completes the first solo nonstop flight across the Atlantic Ocean. -
1928
Alexander Fleming discovers penicillin, a crucial antibiotic that revolutionizes medicine. -
1929
The stock market crashes in October, marking the beginning of the Great Depression. -
1931
The Empire of Japan invades Manchuria, beginning its aggression in Asia. -
1933
Adolf Hitler becomes Chancellor of Germany, leading to the rise of Nazism and the beginning of World War II's prelude. -
1935
The Nuremberg Laws are passed in Germany, stripping Jews of their citizenship and rights. -
1936
The Summer Olympics are held in Berlin, Germany, under the shadow of Hitler's regime. -
1937
The Spanish Civil War ends with a Nationalist victory, led by Francisco Franco. -
1939
The Second World War begins with the German invasion of Poland on September 1. -
1940
France is defeated by Germany in the Battle of France, leading to the occupation of northern France. -
1940
The Battle of Britain begins, a crucial air war between Germany and the United Kingdom.