It codified previous immigration law, and added four inadmissible classes: anarchists, people with epilepsy, beggars, and importers of prostitutes.

[1] Eight members of the recently formed International Working People's Association (IWPA) were found guilty of the bombing despite 6 of them not being physically present.

[1] The IWPA's 1883 manifesto called for the "destruction of the existing class rule, by all means, i.e., by energetic, relentless, revolutionary and international action".

[3] A substitute bill proposed a system within the United States to detect, question, and deport immigrants accused of anarchism.

[3] On September 6, 1901, Leon F. Czolgosz, an American-born son of Polish immigrants and a self-proclaimed anarchist, assassinated President William McKinley.

[9][10] It codified previous immigration law and added four inadmissible classes: anarchists, people with epilepsy, beggars, and importers of prostitutes.

It referred to the people at the meeting as "ignorant and half-crazy dreamers" and declared that it was the country's "right - in the belief of Congress and of many, probably of most, Americans', it makes it our duty - to exclude him.

Immigration officials complained about the law's limitation on deportation to the first three years of an immigrant's residency: The anarchist of foreign birth... remains very quiet, as a rule, until the time limit protects him from deportation and then he is loud and boisterous and begins his maniac cry against all forms of organized government....