After radicals sent dozens of bombs to prominent government officials and American business men, Attorney General A. Mitchell Palmer initiated an anti-Red campaign. Appointing J. Edgar Hoover to the Justice Department, Palmer ordered a series of raids on suspected radical individuals and organizations. The raids turned up little evidence of violent intentions, but hundreds of aliens were deported anyway as a result.
The United States entered into the Kellog-Briand Pact with a number of other countries. The Pact was an agreement to promote peace and eliminate war as a “national policy” for settling international disputes. The Pact failed to provide for a means of enforcing the agreement, however, rendering it useless.
The Eighteenth Amendment to the Constitution forbidding the manufacture, sale, transportation, import, and export of “intoxicating liquors” was ratified, instituting Prohibition nationwide. The amendment was repealed by the Twenty-first Amendment in 1933.