Interactive Timeline – 1920-1930

correct incorrect Jan Eighteenth Amendment begins Prohibition

correct incorrect Aug First International Convention of the Universal Negro Improvement Association

correct incorrect Nov KDKA makes first commercial radio broadcast

correct incorrect THE WORLD: Aug Mahatma Gandhi begins movement to boycott all British goods

correct incorrect Oct The Sheik is released, starring Rudolph Valentino

correct incorrect Nov The Washington Naval Conference begins; conference ends in February with treaties reducing naval arms and recognizing China's borders

correct incorrect Sep Publication of Sinclair Lewis's Babbitt

correct incorrect Sep Fordney-McCumber Tariff raises duties on imports

correct incorrect THE WORLD: Oct Benito Mussolini and Fascists seize control of Italian government

correct incorrect THE WORLD: Dec Union of Soviet Socialist Republics (USSR) officially established

correct incorrect Aug President Warren Harding dies; succeeded by Calvin Coolidge

correct incorrect THE WORLD: Oct Modern Turkey founded as a republic

correct incorrect THE WORLD: Nov Inflation in Germany hits 1 million percent

correct incorrect THE WORLD: Adolf Hitler arrested and imprisoned after "Beer Hall Putsch," Nazis' failed attempt to seize Munich government

correct incorrect Jan First issue of The American Mercury edited by H. L. Mencken

correct incorrect Jan-May The Teapot Dome Scandal reveals corruption in Harding administration

correct incorrect Apr Dawes Plan created to reduce Germany's reparation payments

correct incorrect May National Origins Act sets immigration quotas

correct incorrect May Formation of U.S. Border Patrol

correct incorrect Nov Calvin Coolidge elected president

correct incorrect Apr Publication of F. Scott Fitzgerald's novel The Great Gatsby

correct incorrect Jul Scopes Trial in Dayton, Tennessee, reveals deep division between Christian Fundamentalists and Modernists over Charles Darwin's theory of evolution

correct incorrect Aug 40,000 Ku Klux Klansmen march in Washington

correct incorrect Aug Withdrawal of U.S. Marines from Nicaragua

correct incorrect THE WORLD: Jul Volume 1 of Hitler's Mein Kampf published

correct incorrect Aug Funeral of Rudolph Valentino

correct incorrect Nov National Broadcasting Company (NBC) launches first major radio network

correct incorrect Dec U.S. Marines return to Nicaragua

correct incorrect Apr The Great Mississippi Flood reveals deep discrimination against African Americans

correct incorrect May Charles Lindbergh completes flight across Atlantic

correct incorrect May the Supreme court upholds compulsory sterilization in Buck v. Bell

correct incorrect Aug Execution of Sacco and Vanzetti provokes international demonstrations

correct incorrect Oct Release of movie The Jazz Singer, the first talking motion picture

correct incorrect Dec Deportation of Marcus Garvey

correct incorrect Nov Herbert Hoover elected president

correct incorrect THE WORLD: Jul Women in the United Kingdom granted full suffrage

correct incorrect Jun The Young Plan further reduces Germany's reparation payments from the Great War

correct incorrect Sep Publication of Ernest Hemingway's novel A Farewell to Arms

correct incorrect Oct Black Tuesday stock market crash on Wall Street

correct incorrect THE WORLD: Oct-Dec Onset of the global Great Depression

correct incorrect THE WORLD: Dec Street protests take place against Marines in Haiti

correct incorrect Mar Renunciation of Roosevelt Corollary to Monroe Doctrine

correct incorrect Jun Smoot-Hawley Tariff raises duties on imported manufactured goods

correct incorrect THE WORLD: May Gandhi arrested by British officials after his "Salt March" protesting Britain's salt monopoly