The concept of 100% Americanism promoted by the Ku Klux Klan in the 1920s aimed to exclude certain immigrant groups and promote Protestant ideals.
100% Americanism in the context of the Ku Klux Klan in the 1920s aimed to exclude certain groups, embracing Protestant ideals and limiting foreign immigration. Those considered '100% American' were typically white Protestants of Northern European descent, promoting nativism and discrimination against Southern and Eastern European immigrants.
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