# Immigration Act of 1924 The **Immigration Act of 1924** (the Johnson-Reed Act) was the law that locked in the [[National Origins Quota System]] and defined American immigration policy for the next four decades. Building on the temporary [[Emergency Quota Act of 1921]], it set permanent annual quotas at 2 percent of the number of each nationality's foreign-born residents recorded in the **1890 census** — a baseline chosen precisely because it predated the great waves of Southern and Eastern European immigration, and therefore weighted the quotas heavily toward Northern and Western Europeans. It also barred virtually all immigration from Asia (extending the logic of the [[Chinese Exclusion Act of 1882]] to Japanese and other Asian immigrants by excluding "aliens ineligible for citizenship"). ## The eugenic and nativist design The 1924 Act is the high-water mark of legislated [[Nativism]] in American history, and it was explicitly shaped by the era's [[Eugenics]] movement. [[Madison Grant]]'s *The Passing of the Great Race* (1916) — which warned that "Nordic" stock was being overwhelmed by inferior immigrant races — provided much of the intellectual framing, and eugenicist "expert" testimony (notably Harry Laughlin, designated the House committee's "expert eugenics agent") supplied the pseudo-scientific justification for the national-origins scheme. The quotas were not incidentally discriminatory; demographic preservation of the existing ethnic composition was their stated purpose. ## Legacy and the through-line to the present The national-origins regime stood until the **Hart-Celler Act** of 1965 abolished it and reopened immigration on a more equal basis — the reform that produced the multiethnic demographic change of the subsequent decades. This makes the 1924 Act doubly significant for the knowledge base. First, it is the historical model the modern restrictionist movement (see [[Immigration Restrictionism]]) consciously invokes — a period when the United States sharply curtailed immigration to preserve a particular ethnic majority. Second, the worldview animating it — that demographic change is an existential threat to be resisted by the state — is the direct ancestor of contemporary [[Great Replacement Theory]] rhetoric. Adolf Hitler praised America's 1924 immigration regime in *Mein Kampf* as a model of racial state-building, a connection the KB treats as part of the law's documented legacy. ## See Also - [[Emergency Quota Act of 1921]] — the temporary precursor - [[Chinese Exclusion Act of 1882]] — the earlier racial-exclusion foundation - [[National Origins Quota System]] — the regime it established - [[Hart-Celler Act]] — the 1965 law that dismantled it - [[Madison Grant]] / [[Eugenics]] — the intellectual scaffolding - [[Immigration Restrictionism]] — the movement that invokes it as precedent - [[US Immigration Timeline]] — chronological context