The Dillingham Commission publishes a 42-volume report warning that the “new” immigration from Southern and Eastern Europe threatens to subvert American society. Its recommendations pave the way for the Quota Acts of the 1920s. The first act, the National Origins Act of 1921, limits immigrants to 3 percent of each nationality present in the U.S. in 1910. The second act in 1924 changes the quota to 2 percent of each nationality based on numbers in the United States in 1890. The Oriental Exclusion Act of 1924 prohibits most immigrants from Asia.