What a complete moron. 1915 ? Really ?
http://www.networklobby.org/history-immigration
Between 1860 and 1915 another wave of European immigrants entered the United States. Many came from Russia, Austria and Italy and a large portion of this new group were Jewish. Although immigrant labor continued to be needed, there were strong anti-immigrant feelings toward this new growing population. Congress decided that immigrants should be required to pass a medical exam and have no criminal record in order to immigrate to the United States. The 1891 Act barred people having any contagious diseases or history of crime. In 1903, people in the United States were also fearful of European radicals entering the country and so the government added anarchists and subversives to the 1891 Act.
Fear was so widespread that Congress and President Theodore Roosevelt decided to establish the Dillingham Commission to report the effects of immigration on the country. The results concluded that the United States was not benefiting from immigration because the immigrants were inferior to United States citizens. The Commission recommended that the United States no longer accept immigrants from Eastern and Southern Europe and furthermore all immigrants were to pass a literacy test. In 1917, under the Wilson administration, Congress passed the first comprehensive immigration act which included a literacy test requirement. In 1924 the National Origins Act was passed putting a quota system on the number of immigrants who entered the United States. The law effectively stopped anymore large flows of European immigration