1920s Timeline By bobbybal16 Aug 18, 1920 19th Amendment Ratified May 19, 1921 Emergency Quota Act passed to restrict immigration Nov 12, 1921 Washington Naval Conference Begins Aug 2, 1923 Warren G. Harding Dies Jul 21, 1925 Scopes Trial is Concluded,Scopes guilty but later aquitted May 21, 1927 Lindenbergh Flies across the Atlantic Aug 23, 1927 Sacco and Venzetti Executed Feb 14, 1929 Saint Valentine's Day Massacre in Chicago Oct 29, 1929 Black Tuesday- Wall Street Crashes