TIMELINE OF EVENTS
| 1914 | Universal Negro Improvement Association (UNIA) formed |
| 1915 | Ku Klux Klan revived |
| 1917–1918 | 400,000 African Americans leave South as part of great migration |
| 1917 | Russian Revolution begins |
| 1918–1920 | Worldwide influenza epidemic |
| 1919 | 4 million workers go on strike nationwide |
| Race riots erupt in twenty-five U.S. cities | |
| Radicals mail incendiary devices to prominent Americans | |
| Palmer raids begin | |
| 1920 | American Civil Liberties Union (ACLU) formed |
| David Curtis Stephenson joins the Ku Klux Klan | |
| 1920s | Harlem Renaissance |
| 1921 | J. Edgar Hoover becomes director of the Bureau of Investigation (later the FBI) |
| Teapot Dome scandal | |
| 1924 | National Origins Act passed |
| Charles Dawes negotiates with the Allies to reduce Germany’s reparations payments | |
| 1925–1929 | U.S. farm income drops by 50 percent |
| 1925 | Scopes trial |
| 1926 | Ossian Sweet and family acquitted of first-degree murder charges |
| 1927 | Sacco and Vanzetti executed |
| 1928 | Democrat Al Smith loses presidential election but wins ten largest cities |
| 1929 | Stock market crash sparks Great Depression |