Which is the best example of organized nativism?

In the mid-19th century, a strong nativism sentiment was also against Catholics, as a number of immigrants were from countries with strong Roman Catholic backgrounds. Nativism flourished in the U. S. during the 20th century after the country became home for thousands of immigrants.

As a result of nativism, groups were formed to protest the rights of immigrants. Examples of these groups include the Know-Nothing Party in the 1840s, as well as the Klu Klux Klan.

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