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Warren G. Harding was the president from 1921 to 1923
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Calvin Coolidge was the president from 1923 to 1929
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The United States, along with 14 other countries, signed the Brian-Kellogg Convention on Warfare
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Herbert Hoover was the president from 1929 to 1933
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The stock market in New York plunged, ushering in America's worst recession
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The United States, Britain, Italy, France, and Japan signed the Naval Reduction Treaty in London
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The Bank of The United States closed in New York, the largest bank failure in American history
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President Hoover issued a debt relief proclamation, known as the Hoover Program
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Franklin Delano Roosevelt was the president from 1933 to 1945
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Congress passed the Social Security Act, which provides for the establishment of old age and unemployment insurance to provide relief to the poor, the elderly, the blind, and children
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President Roosevelt and British Prime Minister Winston Churchill met on a warship near Newfoundland in the Atlantic Ocean to publish the Atlantic Charter
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The Japanese attacked Pearl Harbor on December 7, 1941. The next day, the United States declared war on Japan and formally entered World War II