1915: Revived KKK targets Jews, Catholics, foreigners, and African Americans
1917: Bolshevik Revolution brings Communists to power in Russia
Feb. 1919: General strike shuts down business in Seattle
Apr. 1919: Bombs mailed to public official intensifies the Red Scare
Summer 1919: Racial violence kills dozens and injures hundreds in Chicago"
Sept. 1919: Police strike in Boston
Nov. 1919: Mitchell Palmer launches a series of raids on "reds"
Mar. 1920: US Senate rejects the Treaty of Versailles
1920: Harding declares a return to normalcy; wins the Republican nomination; is elected