1920-1930 By clairefoltz Jan 10, 1920 The League of Nations is established with the ratification of the Treaty of Versailles Aug 18, 1920 Women are given the right to vote May 19, 1921 A national quota system on the amount of incoming immigrants is established Sep 7, 1921 The first Miss America Pageant is held New Jersey Feb 5, 1922 Reader's Digest is founded Apr 7, 1922 The Teapot Dome Scandal begins Mar 2, 1923 Time Magazine is published for the first time Apr 15, 1923 The first sound on film motion picture is shown Jan 25, 1924 The first Winter Olympic Games are held in the French Alps Nov 28, 1925 The Grand Ole Opry transmits its first radio broadcast May 9, 1926 The first flight to the North Pole and back occurs Apr 22, 1927 The Great Mississippi Flood occurs May 15, 1928 The first appearance of Mickey and Minnie Mouse on film occurs Jun 17, 1928 Amelia Earhart becomes the first women to fly over the Atlantic Ocean Jan 15, 1929 Martin Luther King is born Jun 17, 1930 The Smoot-Hawley Tariff Act is signed by President Herbert Hoover