I.W.W. New York City headquarters after Palmer Raid, 1919.
flipFlip to "Now for a round-up," a political cartoon in support of the Sedition Act of 1918.
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Image of an office that has been searched and items thrown on the floor and furniture overturned

Credit: Courtesy of the Labadie Collection, University of Michigan.

In November 1919, Attorney General A. Mitchell Palmer launched a series of raids against radical labor and progressive organizations, including the International Workers of the World, one of the nation's most militant unions. Federal agents ransacked offices, confiscated files, and by early 1920 arrested more than 5,000 in what became known as the "Palmer Raids."

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