Final answer:
The Immigration Act of 1921 and the National Origins Act of 1924 had the opposite effect of increasing foreign immigration, especially Asian immigration. These acts were enacted to restrict immigration and favor immigrants from western and northern Europe over those from eastern and southern Europe.
Step-by-step explanation:
The Immigration Act of 1921 and the National Origins Act of 1924 had the opposite effect of increasing foreign immigration, especially Asian immigration. These acts were enacted to restrict immigration and favor immigrants from western and northern Europe over those from eastern and southern Europe. The Emergency Quota Act of 1921 set yearly constraints on immigration, and the National Origins Act of 1924 further restricted immigration from central and southern Europe by creating quotas based on the national origins of immigrants listed in the 1890 census. The act also implicitly banned immigration of Asians by its provision against any group who was ineligible for citizenship.