NORDICISM:

In the United States, the primary spokesman for Nordicism was the eugenicist Madison Grant. His 1916 book, The Passing of the Great Race, or the Racial Basis of European History about Nordicism was highly influential among racial thinking and government policy making.[43]

Grant used the theory as justification for immigration policies of the 1920s, arguing that the immigrants from certain areas of Europe, such as Italians and other Southern Europeans and Eastern Europeans, represented a lesser type of European and their numbers in the United States should not be increased. Grant and others urged this as well as the complete restriction of non-Europeans, such as the Chinese and Japanese.

Grant argued the Nordic race had been responsible for most of humanity's great achievements, and admixture was "race suicide" and unless eugenic policies were enacted, the Nordic race would be supplanted by inferior races. Future president Calvin Coolidge agreed, stating "Biological laws tell us that certain divergent people will not mix or blend. The Nordics propagate themselves successfully. With other races, the outcome shows deterioration on both sides."[44]

The Immigration Act of 1924 was signed into law by President Coolidge. This was designed to reduce the number of immigrants from Southern Europe, Southeast Europe, Eastern Europe and Russia, exclude Asian immigrants altogether, and favor immigration from the British Isles, Germany, Denmark, Sweden and Norway.

The spread of these ideas also affected popular culture. F. Scott Fitzgerald invokes Grant's ideas through a character in part of The Great Gatsby, and Hilaire Belloc jokingly rhapsodied the "Nordic man" in a poem and essay in which he satirised the stereotypes of Nordics, Alpines and Mediterraneans.[45]