1921-1941 By craigwallace May 30, 1922 Lincoln Memorial Dedicated Mar 2, 1923 Time Magazine is Published for the First Time Aug 2, 1923 Warren G. Harding Dies, Calvin Coolidge Takes Over Nov 7, 1924 Calvin Coolidge Elected Jan 5, 1925 First Woman Governor (Wyoming) May 9, 1926 First Liquid Fueled Rocket Test May 20, 1926 Air Commerce Act Period: Apr 22, 1927 to May 5, 1927 Great Mississippi Flood Oct 4, 1927 Work On Mount Rushmore Begins Jun 17, 1928 Amelia Earhart Flight Over The Atlantic Nov 6, 1928 Herbert Hoover Elected Dec 21, 1928 Hoover Damn is approved by Congress Feb 14, 1929 St. Valentine's Day Massacre Period: Oct 24, 1929 to Oct 29, 1929 Stock Market Crash Feb 18, 1930 Pluto Discovered Mar 3, 1931 Star Spangled Banner Becomes The National Anthem May 1, 1931 Empire State Building Opens Jan 22, 1932 Reconstruction Finance Corporation Nov 8, 1932 Franklin D Roosevelt Elected Period: Mar 9, 1933 to Jun 16, 1933 New Deal Programs Passed Mar 31, 1933 Civilian Conservation Corps Authorized Dec 5, 1933 21st Amendment Mar 22, 1934 First Master's Golf Tournament Aug 14, 1935 Social Security Act Nov 3, 1936 Franklin D Roosevelt Re-Elected May 6, 1937 Hindenburg Accident May 17, 1938 Naval Expansion Act Nov 5, 1940 Franklin D Roosevelt Re-Elected (only 3 term president) Dec 7, 1941 Attack on Pearl Harbor