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Harding
Warren Harding is inaugurated as the 29th president. -
Coolidge
President Harding dies and is succeeded by vice president, Calvin Coolidge. Coolidge the becomes the 30th U.S. President. -
Butler Act
Tennessee passes a law against the teaching of evolution in public schools, remaining enforced for 40 years. -
First nonstop solo flight across the tranatlantic
Charles Lindbergh makes the first solo nonstop transatlantic flight in his plane, The Spirit of St. Louis. -
Hoover
Herbert Hoover is inaugurated as the 31st president. -
The Star-Spangled Banner
The Star-Spangled Banner is adopted as the national anthem. -
Hattie Wyatt Caraway
Hattie Wyatt Caraway of Arkansas is the first woman elected to the U.S. Senate. This was to fill a vacancy caused by the death of her husband. -
Amelia Earhart
Amelia Earhart completes first solo nonstop transatlantic flight by a woman. -
World War II
World War II begins due to an unprovoked attack on Poland started by Germany. This war caused some of the most destructive conflict in history.