Centralia Massacre
1919 CE.
Shown on the map at 46.721°, -122.961°.
The Centralia Tragedy, also known as the Centralia Conspiracy and the Armistice Day Riot, was a violent and bloody incident that occurred in Centralia, Washington, on November 11, 1919, during a parade celebrating the first anniversary of Armistice Day. The conflict between the American Legion and Industrial Workers of the World (IWW or "Wobblies") members resulted in six deaths, others being wounded, multiple prison terms, and an ongoing and especially bitter dispute over the motivations and events that precipitated the event. Both Centralia and the neighboring town of Chehalis had a large number of World War I veterans, with robust chapters of the Legion and many IWW members, some of whom were also war veterans. The ramifications of the event included a trial that attracted national media attention, notoriety that contributed to the First Red Scare in 1919 to 1920, the creation of a powerful martyr for the IWW, a monument to one side of the battle, a mural for the other side, and a formal tribute to the fallen Legionnaires by US President Warren G. Harding.
Text from the Wikipedia article Centralia Tragedy, licensed CC BY-SA 4.0.