Bottom line

The American history is not a single uninterrupted “race science” tradition. It is a braid of scientific racial classification, hereditarian theories of mind and behavior, intelligence testing, and eugenic policy. These strands existed separately before they fused most tightly from roughly 1910 to 1930. After World War II, the word eugenics lost legitimacy faster than coercive sterilization, hereditarian research, or race-and-IQ controversy disappeared. Modern genomics has established that cognitive traits are polygenic and that inherited variation contributes to individual differences in studied populations. It has not produced a validated causal estimate of how much broad U.S. racial-group IQ gaps are genetic. Nor would a descriptive genetic finding, by itself, imply a eugenic policy.

Scope and method

This note begins from Richard Hanania’s 2026 essay “Esoteric Cofnasism”, which offers a historical and strategic challenge to Nathan Cofnas’s claim that defeating contemporary racial egalitarianism requires a public “hereditarian revolution.” Hanania is used as a framing and interpretive source, not as the sole historical authority and not as proof of the underlying race-and-IQ claims. Historical claims are checked against court opinions, federal records, public-opinion data, scientific-society statements, institutional histories, and specialist scholarship. Jay Joseph’s 2026 essay is retained as a contrasting maximal-skeptical intervention. The focus is the United States, with British origins included only where they directly shaped American ideas and institutions.

The terms that must not be collapsed

The central inference error

A high heritability estimate within a population does not calculate the cause of a mean difference between populations. Heritability is conditional on a population and its environments. A trait can be highly heritable within two groups while their mean difference is environmentally produced; the reverse logical possibility also exists. The between-group question requires evidence that actually identifies between-group causes.

At-a-glance: how the strands converged

flowchart LR
    A[19th-century racial classification] --> E[Scientific racial hierarchy]
    B[Hereditarian theories of mind] --> F[Simple inheritance claims]
    C[Psychometrics and IQ testing] --> G[Quantified rankings]
    D[Progressive-era state capacity] --> H[Immigration, segregation, institutionalization, sterilization]
    E --> I[1910s-1920s convergence]
    F --> I
    G --> I
    H --> I
    I --> J[Postwar repudiation of explicit eugenics]
    I --> K[Persistence of sterilization and classification]
    I --> L[Later race-and-IQ controversies]
    L --> M[Genomics: real individual polygenic signal]
    L --> N[Between-race causal share remains unidentified]

The arrows mark documented historical convergence, not a claim that every later intelligence researcher inherited the politics of every earlier eugenicist.

Chronological timeline

I. Before IQ: scientific racism and hereditary rank, 1839–1882

1839 — Samuel George Morton publishes Crania Americana

Morton compared cranial measurements and arranged human populations in a racial hierarchy. The work belongs to scientific racism before eugenics and before psychometric IQ: bodily measurement was made to carry claims about mental capacity and civilization. It helped give quantitative prestige to racial hierarchy in an American society structured by slavery and settler expansion. See the National Academies’ historical background and a modern archival reassessment of Morton.

Intersection: measurement + racial hierarchy; not yet IQ or a formal eugenic program.

1854 — Types of Mankind popularizes polygenist hierarchy

Josiah Nott and George Gliddon expanded the polygenist argument that human “races” had separate origins and unequal capacities. The book used Morton’s data and supplied an apparently scientific defense of racial permanence at a moment when slavery was politically contested.

Intersection: scientific racism supported racial order; the mechanism was typological anthropology, not Mendelian genetics.

1869 — Francis Galton publishes Hereditary Genius

Galton argued that eminence and mental ability ran in families, ranked populations, and treated selective reproduction as a route to human improvement. This joined a hereditarian theory of intellect to a nascent reproductive program. It strongly influenced American psychologists and eugenicists even though Galton was British. The APA’s historical chronology and the NHGRI eugenics timeline place his intelligence and racial claims at the movement’s intellectual origin.

Intersection: hereditarian intelligence + hierarchy + selective reproduction.

1877 — Richard Dugdale publishes The Jukes

Dugdale traced poverty, crime, illness, and institutionalization through a constructed family lineage. Later eugenicists used “the Jukes” as evidence that pauperism and criminality were inherited. That was a distortion: Dugdale considered both heredity and environment, and his reform recommendations emphasized environmental change. Later retellings progressively converted a mixed account into hereditary fate. See the scholarly history of the Jukes and Kallikak family narratives.

Intersection: family pedigree became a bridge from class stigma to biological degeneracy; not an IQ study.

II. Eugenics becomes an American institution, 1883–1915

1883 — Galton coins eugenics

Galton named a program for improving future generations’ supposed physical and mental “racial qualities.” The term turned a loose aspiration into a self-conscious field and movement. The NHGRI fact sheet emphasizes that eugenicists wrongly treated intelligence, behavior, and many social problems as if they followed simple inheritance.

Intersection: a descriptive claim about heredity was converted into a normative project for population management.

1900 — Rediscovery of Mendel intensifies simple-inheritance claims

Mendelian genetics was a real scientific advance, but American eugenicists frequently treated complex behavioral and social traits—“feeblemindedness,” pauperism, alcoholism, criminality—as if they were single-gene characters. The mistake was not “genetics is unreal”; it was prematurely mapping poorly defined, socially loaded outcomes onto simple inheritance.

1905 — Binet and Simon create a school-assistance test in France

Alfred Binet and Théodore Simon designed tasks to identify children who needed additional educational help. The original instrument was not a racial ranking system and did not by itself encode a eugenic program. Its American transformation is therefore an important case of a tool acquiring new meaning through institutions and interpretation. See the history of psychological assessment and Binet’s 1905 text.

1906 — American Breeders Association creates a eugenics committee

At Charles Davenport’s urging, a livestock- and plant-breeding organization established a committee to promote human eugenics. It provided an organizational bridge from experimental breeding to claims about human social traits. The NHGRI timeline identifies Davenport as the central American institution-builder.

1907 — Indiana enacts the first compulsory sterilization law

Indiana authorized sterilization of institutionalized people classified as “idiots,” “imbeciles,” and certain criminals. More than thirty states eventually enacted sterilization laws. Early statutory targets were often defined through disability, institutional status, sexuality, poverty, and crime, not race alone—although those classifications were themselves racialized and later enforcement fell disproportionately on marginalized racial groups. NHGRI’s timeline traces the Indiana law and its spread.

Intersection: hereditarian social diagnosis became coercive state policy before mass IQ testing.

1908 — Henry Goddard brings the Binet scale into U.S. institutions

Goddard translated and promoted the Binet test in schools, clinics, institutions, and immigration settings. He treated “feeblemindedness” as a hereditary condition with social consequences, helping change a remedial educational tool into a classifier of supposedly fixed human types. The APA’s account of early intelligence testing describes this American testing industry.

1910 — Eugenics Record Office opens at Cold Spring Harbor

Charles Davenport established the Eugenics Record Office (ERO), later led by Harry Laughlin. It trained fieldworkers, compiled family pedigrees, and coded traits such as criminality, alcoholism, and “feeblemindedness.” The ERO converted loose prejudice into files, charts, expert testimony, and model laws. See the Cold Spring Harbor repository history and NHGRI timeline.

1912 — Goddard publishes The Kallikak Family

Goddard presented a “good” and “bad” family line as evidence that intellectual disability, immorality, and poverty were inherited together. Later scholarship showed serious genealogical, diagnostic, and photographic problems. Yet the book became a widely repeated proof text for institutionalization, segregation, and reproductive restriction. See “Who Was Deborah Kallikak?”.

Intersection: pedigree narrative + supposed inherited intelligence + eugenic remedy.

III. The high convergence of IQ, race, immigration, and eugenics, 1916–1930

1916 — Stanford–Binet and Madison Grant’s racial history appear

Lewis Terman’s Stanford revision standardized Binet-derived testing for American use and popularized the intelligence quotient. Terman interpreted low scores in hereditary and racialized ways. In the same year, Madison Grant’s The Passing of the Great Race portrayed “Nordic” decline and racial mixture as biological threats. Psychometrics and racial eugenics were distinct enterprises, but influential figures increasingly made them mutually reinforcing.

1917–1918 — Army Alpha and Beta tests classify nearly two million recruits

Robert Yerkes’s program administered verbal Alpha and nonverbal/pictorial Beta tests during World War I. The unprecedented scale gave psychology institutional prestige and produced aggregate comparisons by race, nativity, and national origin. Language, schooling, culture, selection, and administration were entangled with performance, yet public interpreters often treated scores as measures of innate group intelligence. The APA chronology describes both the scale and racialized interpretation of the program.

Causal caution: Army testing did not single-handedly create immigration restriction. It supplied quantitative authority to an already powerful nativist, racial, and eugenic coalition.

1921 — Eugenics congress and congressional expertise converge

The Second International Eugenics Congress met at the American Museum of Natural History. Immigration dominated many discussions, while exhibits joined Mendelian heredity to ratings of families and races. Harry Laughlin also appeared as an expert before Congress, presenting purported biological evidence about immigrants’ criminality and dependency. See NHGRI’s congress history and Laughlin’s archived congressional testimony.

1923 — Carl Brigham publishes A Study of American Intelligence

Brigham reanalyzed Army-test data as evidence of “Nordic” intellectual superiority and declining national intelligence due to immigration. This was a particularly direct fusion of group IQ comparison, racial typology, and restrictionist politics. The book also mattered to the later development of college admissions testing.

1924 — Johnson–Reed Act establishes national-origins quotas

The Immigration Act sharply restricted immigration from southern and eastern Europe and excluded immigrants ineligible for naturalization, effectively barring immigration from Asia. Eugenicists were important advocates, but the law also arose from older nativism, labor politics, wartime nationalism, and racial exclusion. The State Department’s official history describes its purpose as preserving U.S. homogeneity; NHGRI documents eugenicists’ crucial role.

Intersection: racial heredity claims and intelligence-test interpretations helped legitimate a policy whose causal coalition was broader than psychometrics.

1924 — Virginia joins racial classification to eugenic sterilization

Virginia enacted both a Racial Integrity Act, policing marriage and racial classification, and a Eugenical Sterilization Act, targeting people classified as hereditarily “unfit.” The two laws had related racial-purity premises but different immediate legal targets. Carrie Buck, selected to test the sterilization law, was a poor white woman who had been raped—an essential reminder that American eugenics cannot be reduced to anti-Black policy alone.

1926 — American Eugenics Society is formally established

The society popularized eugenics through publications, lectures, exhibits, and “Fitter Family” contests. Its membership and sympathizers crossed today’s partisan categories: social conservatives, Progressive reformers, birth-control advocates, academics, public-health officials, and business elites participated for different reasons. Thomas Leonard’s historical study calls Progressive-era eugenics a broad, mainstream coalition rather than a one-party aberration (paper). See also the American Eugenics Society institutional history.

1927 — Buck v. Bell upholds compulsory sterilization

The Supreme Court upheld Virginia’s law, accepting claims that Carrie Buck, her mother, and her child represented hereditary “feeblemindedness.” The opinion’s “three generations” line became the canonical legal expression of eugenic power. The primary opinion explicitly relied on heredity and public welfare: Buck v. Bell, 274 U.S. 200.

Intersection: a contested diagnosis of intelligence and social fitness became a constitutional justification for irreversible state violence.

1930 — Brigham repudiates his racial conclusions

Brigham concluded that language and nonunitary test content destroyed the significance of his earlier national and racial comparisons; his prior inferential structure collapsed. The reversal did not erase the institutional consequences of the earlier claims, but it shows that criticism preceded the Nazi era and arose from psychometric as well as moral objections. A Library of Congress-hosted historical overview summarizes the 1930 recantation.

Hanania treats Brigham’s reversal as one marker of a broader 1920s–1930s retreat from elite race science. The timing matters to his argument: opposition to innate racial hierarchy was becoming intellectually respectable before World War II and decades before the politics he calls the “Great Awokening.” The retreat was real but uneven; it did not immediately end eugenic law, sterilization, segregation, or hereditarian research.

IV. Scientific retreat, legal limits, and institutional persistence, 1931–1968

1937 — Pioneer Fund is created

Wickliffe Draper and associates established the Pioneer Fund with interests in heredity, eugenics, and “race betterment.” In later decades it financed researchers prominent in race-and-IQ controversies, including work cited by hereditarians. Funding provenance is historically important, but it does not by itself prove a study false; methods and evidence still require independent evaluation. See William Tucker’s historical study.

1939 — Eugenics Record Office closes

The Carnegie Institution withdrew support after scientific criticism of the ERO’s methods and claims. Closure marked institutional decline, not the end of eugenic law, sterilization, or hereditarian thought. See the NHGRI timeline.

1942 — Skinner v. Oklahoma limits punitive sterilization

The Supreme Court struck down Oklahoma’s habitual-criminal sterilization law on equal-protection grounds and described procreation as fundamental. It did not overrule Buck v. Bell or invalidate every disability-based state law. Primary decision: Skinner v. Oklahoma, 316 U.S. 535.

1942–1956 — Belief in equal learning capacity expands before contemporary “wokeness”

Public-opinion data assembled by NORC reported that 42 percent of a national sample of white Americans in 1942 said Black Americans would “learn just as well” if given the same education; by 1956, 78 percent answered affirmatively. The survey report itself warns that question wording, abstract assent, and inconsistent attitudes complicate interpretation. In 1942 only 30 percent supported the same schools, and in 1956 just under half did so. NORC’s trend report therefore documents a widening rejection of innate intellectual inequality, not a simultaneous end to segregation or racial prejudice.

Why this matters for Hanania: anti-hereditarian belief could coexist with Jim Crow, opposition to integration, and cultural or individual-blame explanations. That weakens the claim that rejecting racial hereditarianism was by itself sufficient to produce the later ideological formation Hanania calls “wokeness.”

1945–1946 — Nazi crimes discredit explicit eugenics, but continuity remains

Revelations of Nazi sterilization, euthanasia, and genocide made racial hygiene and compulsory eugenics publicly toxic. American institutions increasingly renamed fields and emphasized human genetics, counseling, population science, or social biology. Yet a clean “death of eugenics in 1945” story is false: state sterilizations continued, organizations persisted, and some personnel and assumptions migrated into new frameworks.

1950–1951 — UNESCO race statements reject fixed racial hierarchy

Postwar international statements emphasized human unity and challenged doctrines of innate racial rank. The statements also generated disputes among anthropologists and geneticists about how to describe population variation. Their significance was political and scientific: the burden shifted away from typological race as the default unit of biology. See UNESCO’s history of its race statements.

1954 — Brown v. Board of Education changes the legal use of social science

The Supreme Court rejected legally segregated public schooling. Social-science evidence was now mobilized against caste and segregation rather than to naturalize group hierarchy. This did not resolve disputes about tests or intelligence, but it transformed the constitutional and institutional setting in which racial difference claims operated. See the APA history of psychology and Brown.

1956–1962 — Segregationists navigate a growing race-science taboo

The 1956 Southern Manifesto defended resistance to Brown chiefly through constitutional, states’-rights, and social-order arguments rather than a sustained hereditarian theory of Black intelligence. This supports part of Hanania’s point: explicit race science was no longer the safest public language even among segregationists. But it had not vanished. Carleton Putnam’s pro-segregation Race and Reason (1961) explicitly invoked biological hierarchy and received endorsements from Senators Strom Thurmond and Richard Russell; Alabama’s governor commissioned Wesley Critz George’s The Biology of the Race Problem (1962) for use in desegregation litigation. See Putnam’s text, the Congressional Record endorsement, and a scholarly history of postwar segregationist race science.

Interpretation: the period shows marginalization without disappearance. It also complicates a clean contrast between “race realism” and egalitarianism: political actors could reject, conceal, compartmentalize, or selectively deploy hereditarian arguments depending on audience and purpose.

1950s–1970s — Sterilization becomes more visibly racialized and welfare-linked

As institutional sterilization of white patients declined in some places, public hospitals and welfare systems increasingly targeted poor women, including Black, Latina, Puerto Rican, and Native American women, through coercion, misinformation, or defective consent. California records show Latinas faced a substantially higher sterilization risk than non-Latinas in 1920–1945 (study); North Carolina’s own victim-justice history records the program’s later shift toward noninstitutionalized people and African Americans.

Continuity and change: later abuse often used the language of welfare, population control, or medical necessity rather than classical IQ hereditarianism. It belongs in the eugenics history because reproductive power still tracked judgments about fitness, dependency, disability, class, and race—but each case should be documented rather than assumed.

V. The modern race-and-IQ controversy and rights litigation, 1969–1993

1969 — Arthur Jensen launches the modern U.S. hereditarian controversy

In “How Much Can We Boost IQ and Scholastic Achievement?,” Jensen argued that IQ variation within populations was highly heritable and proposed that genetic factors were plausibly implicated in the Black–white mean difference. He also connected welfare policy to a fear of dysgenic change. This is the clearest bridge from classical eugenic concern to the modern psychometric hereditarian debate. Original article and metadata: Harvard Educational Review.

Critical distinction: the high within-group heritability estimate did not logically measure the between-group genetic share. Jensen offered a hypothesis and indirect arguments, not a molecular decomposition of the racial gap.

1971 — Griggs v. Duke Power constrains employment testing

The Supreme Court held that facially neutral diploma and aptitude-test requirements could violate Title VII when they imposed racial disparate impact and were not shown to be job-related. The case did not declare all ability testing invalid; it changed the legal demand from abstract ranking to demonstrable relevance. Primary record: Griggs v. Duke Power Co., 401 U.S. 424.

1972 — Lewontin sharpens the within-group/between-group distinction

Richard Lewontin’s variance analysis and “seed” analogy became central to the argument that within-population heritability does not determine the cause of a difference between population means. The logic is broadly accepted even among many hereditarians. Disagreement persists over what additional evidence would identify a between-group genetic effect.

1973–1974 — The Relf case exposes federally funded coercion

After two Black sisters in Alabama were sterilized without valid informed consent, Relf v. Weinberger challenged federal regulations. The district court found evidence that poor patients had been coerced and barred federal funding of sterilization without voluntary, knowing, uncoerced consent by a competent person. Primary decision: Relf v. Weinberger, 372 F. Supp. 1196.

Intersection: this was reproductive coercion structured by race, poverty, age, and disability—not a new test of IQ genetics.

1974 — Leon Kamin reopens the politics and methods of IQ heredity

Kamin’s The Science and Politics of I.Q. attacked the evidentiary basis of twin-study hereditarianism and foregrounded the eugenic and political history of intelligence research. Subsequent discoveries about Cyril Burt’s data damaged one famous body of twin evidence. The broader field did not collapse: other twin, adoption, and later molecular studies remained, along with continuing disputes over assumptions and interpretation.

1976 — Genetics societies oppose race-and-IQ political resolutions

Amid controversies involving Jensen and William Shockley, the Genetics Society of America and American Society of Human Genetics debated how scientific bodies should respond to claims of inherited racial inferiority. The episode captures a lasting tension: oppose racist misuse without turning a professional resolution into a substitute for empirical research. A historical review identifies four recurring controversy peaks—World War I testing, UNESCO, Jensen/Shockley, and The Bell Curve (review).

1976 — Federal review documents defective IHS sterilization consent

The Government Accountability Office reviewed four Indian Health Service areas and found them generally out of compliance with IHS consent regulations; most forms reviewed did not meet requirements. The report supports a documented claim of serious consent failures. It does not support every viral numerical estimate about the percentage of all Native women sterilized. Primary source: GAO HRD-77-3.

1976 and 1992 — Minnesota Transracial Adoption Study becomes contested evidence

Sandra Scarr and Richard Weinberg studied Black and interracial children adopted into mostly white middle-class families; a later follow-up reported persistent group differences. Hereditarians and environmentalists interpreted the design differently. It was a transracial adoption study, not a twins-reared-apart experiment. Selective placement, age at adoption, pre-adoption environment, racial treatment, attrition, and category definitions complicate causal inference. Its results do not independently identify a genetic percentage of the national Black–white gap.

1979 — Larry P. v. Riles restricts IQ tests in California special education

A federal court found standardized IQ tests racially biased in their use for placing Black children into classes for the “educable mentally retarded” and prohibited that use in California. The decision concerned a specific high-stakes institutional use and classification system, not the proposition that cognitive tests have no validity for any purpose. Primary decision: Larry P. v. Riles, 495 F. Supp. 926.

1980s — The Flynn effect becomes central

James Flynn documented large secular increases in cognitive-test scores across generations. The gains demonstrated that substantial score changes can occur too quickly to be explained by genetic evolution and that high within-cohort heritability is compatible with large environmental shifts. The Flynn effect does not, by itself, identify every cause of every racial gap; it defeats simple immutability arguments and raises questions about what changing scores represent.

1990 — Minnesota Study of Twins Reared Apart reports high IQ similarity

Thomas Bouchard and colleagues reported strong resemblance among identical twins reared apart, reinforcing the mainstream view that inherited variation contributes substantially to individual cognitive differences in sampled populations. Critics, including Jay Joseph, challenge separation quality, recruitment, environmental similarity, assumptions, and unpublished comparison data. The appropriate historical statement is that MISTRA became important evidence and an enduring methodological dispute, not that one study settled the field.

VI. The Bell Curve and the genomic turn, 1994–2019

1994 — The Bell Curve renews mass controversy

Richard Herrnstein and Charles Murray argued that cognitive ability predicts important life outcomes, emphasized class stratification by ability, discussed Black–white score differences, and warned about “dysgenic” fertility. They said both genes and environment likely contribute to racial differences but declined to assign proportions. The book therefore revived eugenic-style concern about population composition without proposing the old sterilization regime. Its evidence did not establish a genetic share of the racial gap. Bibliographic record: Google Books.

The politics of the same year were more internally mixed than the book controversy alone suggests. Hanania cites the 1994 General Social Survey, in which only 12 percent of Americans attributed Black disadvantage to “less inborn ability,” while much larger shares accepted personal-responsibility explanations rather than discrimination. Such responses cannot determine causal truth, and wording matters, but they support his narrower historical point: many Americans combined rejection of innate racial inferiority with explanations that were neither structural nor conventionally progressive.

1996 — APA task force separates knowns from unknowns

The American Psychological Association task force concluded that cognitive tests measure meaningful differences and predict outcomes, and that individual differences reflect both genes and environments. On the Black–white mean difference, it found no adequate causal explanation and less empirical support for a genetic interpretation than for some environmental proposals. The report is a landmark because it rejected both “tests measure nothing” and “the racial genetic cause is established.” Record and citation: ETS, DOI 10.1037/0003-066X.51.2.77.

1999 — Human geneticists explicitly oppose eugenic reproductive restriction

The American Society of Human Genetics opposed coercive restrictions on reproductive freedom. This illustrates a decisive normative break: researchers can study genetic disease or behavioral variation while rejecting state control over who may reproduce. ASHG statement archive.

1990–2003 — Human Genome Project pairs discovery with eugenics safeguards

The Human Genome Project institutionalized ethical, legal, and social-implications research partly because policymakers and scientists feared genetic discrimination and a “new eugenics.” Completion of the reference sequence did not reveal genes for discrete biological races or a simple intelligence hierarchy. It instead accelerated a shift toward polygenic traits, probabilistic effects, population structure, and gene–environment complexity. See the HGP timeline and NHGRI’s eugenics fact sheet.

2000s–mid-2010s — Candidate-gene claims largely fail to replicate

Small studies repeatedly linked a few favored genes to intelligence, personality, or behavior. Many associations did not survive larger samples and stricter multiple-testing controls. This is an important victory for critics of simplistic “gene for intelligence” narratives. It does not show that inherited variation has no relationship to cognitive traits; it helped drive the field toward much larger genome-wide studies. See a review of candidate genes and intelligence.

2014 — Nicholas Wade controversy shows race typology returning through genomics

Wade’s A Troublesome Inheritance extrapolated from population genetics to racial behavioral differences and recent social evolution. A large group of population geneticists whose work he cited publicly rejected those interpretations (letter). The episode clarified a recurring error: detecting ancestry-correlated population structure does not, without trait-specific causal evidence, validate traditional racial categories or explain contemporary behavioral-group differences.

2010s — The “Great Awokening” creates a causal-timing problem

Hanania uses “Great Awokening” for the sharp expansion of progressive racial ideology and institutional enforcement during the 2010s. His central historical objection to Cofnas is temporal: elite race science had already lost status by the mid-twentieth century, whereas this political shift occurred many decades later. A cause may operate with a lag, but a roughly seventy-year interval creates a heavy evidentiary burden; it cannot simply be assumed.

This timing argument challenges necessity and sufficiency, not the existence of any indirect influence. Competing or complementary mechanisms include civil-rights law and disparate-impact doctrine, professional and educational bureaucracies, elite polarization, organizational imitation, social media, demographic change, and responses to real discrimination. The chronology therefore undercuts a monocausal story without by itself proving Hanania’s preferred alternative.

2018 — Large GWAS finds replicable polygenic associations with intelligence

A genome-wide meta-analysis of 269,867 people identified many loci associated with cognitive-test performance, demonstrating that molecular gene discovery had moved beyond the failed candidate-gene era. Each association is tiny; prediction is probabilistic; samples were heavily European; and association is not automatically a direct genetic effect. The study supports polygenicity and individual variation, not a racial-gap decomposition. PubMed record.

2018 — ASHG rejects genetic racial ranking

The American Society of Human Genetics stated that using genetics to rank populations reflects a fundamental misunderstanding of genetics. The statement does not deny geographic ancestry or population structure; it rejects translating overlapping, continuous human variation into a ladder of racial worth. ASHG statement.

2019 — Polygenic-score portability becomes a central warning

Scores trained predominantly in European-ancestry samples generally predict less accurately in other populations. Differences in linkage disequilibrium, allele frequency, study design, environments, and population structure all matter. A lower or higher average score across differently sampled populations is not a clean estimate of genetic causation for a social-group phenotype. See Martin et al. on unequal PRS performance and a diverse-population performance analysis.

VII. The current dispute: within-family genomics, ancestry, and revived eugenic rhetoric, 2020–2026

2020 — Nathan Cofnas defends research on group differences

Cofnas’s peer-reviewed paper argues for freedom to investigate group differences and presents indirect hereditarian considerations. It is best read as an argument about permissible inquiry and evidentiary possibilities, not as direct proof that genes explain a particular share—much less most—of broad U.S. racial IQ differences. Paper; see also Nathan Cofnas.

2022 — Within-sibling GWAS separates some direct from indirect association

Large family-based analyses found that population GWAS estimates for cognitive ability and educational attainment attenuate within siblings. This shows that ordinary GWAS can capture population stratification, assortative mating, and relatives’ indirect genetic effects in addition to inherited direct effects. Crucially, attenuation was not generally disappearance: the findings challenge both naïve genetic determinism and the claim that molecular evidence is simply zero. Howe et al., Nature Genetics; Lee et al. on educational attainment.

2023 — National Academies rejects race as a genetic proxy

The National Academies recommended that researchers not use race as a proxy for human genetic variation and that they justify descriptors according to the scientific question. Genetic variation is structured, but structure is multidimensional and continuous rather than neatly partitioned into U.S. census races. Consensus report and recommendations summary.

2023 — Human genetics confronts its own institutional history

The American Society of Human Genetics issued a historical report on genetics, eugenics, racism, and exclusion. This marks a mature institutional response: acknowledge continuity and harm without claiming that all contemporary human genetics is eugenics. ASHG report and statement.

2026 — Hanania proposes “Esoteric Cofnasism”

In “Esoteric Cofnasism”, Hanania reconstructs what he calls Cofnasism as four linked propositions: (1) average Black–white cognitive and behavioral differences are partly genetic; (2) mainstream intellectual life denies this; (3) that denial makes “wokeness” intellectually compelling; and (4) wokeness cannot be defeated until the public accepts racial hereditarianism. Hanania’s fundamental point is that even granting the first two propositions for argument’s sake, the third and fourth do not follow.

His historical counterexample is the long period from the postwar years to roughly 2010, when most white Americans rejected innate racial-intelligence hierarchy while many also rejected progressive structural explanations. For Hanania, this shows that mass “race realism” may be sufficient for the anti-“woke” politics he favors but is not necessary. A cultural, behavioral, individual-responsibility, or uncertainty-based politics can also resist demands for equal group outcomes.

Hanania then advances a strategic hypothesis: a small, protected hereditarian fringe could be politically useful without winning. By keeping biological explanations barely within the imaginable range, it might make cultural explanations look moderate, increase elite uncertainty, constrain categorical disparate-impact reasoning, and shift the Overton window. He calls this “esoteric Cofnasism.” The thesis is explicitly about political discourse, not a genetic demonstration of group differences.

Evidence boundary

Hanania’s historical timing critique is stronger than his proposed mechanism. The claim that a tiny hereditarian fringe would create a useful roughly 15 percent level of elite doubt, discipline institutions, or move the Overton window is a plausible political hypothesis but is not measured in the essay. A movement can also normalize group essentialism, encourage discrimination against individuals, or expand beyond the limited role its strategists intend. Even if an “extreme flank” effect exists, it would not validate the flank’s empirical claims.

2026 — Jay Joseph offers a parallel maximal-skeptical critique

Joseph’s Substack essay attacks classical twin studies, twins-reared-apart studies, heritability estimates, GWAS interpretations, and race science. He correctly highlights several recurrent errors: within-group heritability does not establish between-group causation; “race” and ancestry are not interchangeable; family and population structure can confound inference; candidate-gene research failed badly; and genetic findings do not entail eugenic policy.

His stronger claims—that there is little or no valid evidence of genetic influence on within-group IQ variation and that DNA-based discovery has failed—are minority, maximal-skeptical conclusions, not neutral summaries of the current evidence. Replicable intelligence GWAS and nonzero within-family signals directly complicate them. Those studies still do not validate racial hereditarian estimates.

Historical significance: the essay shows that the century-old controversy now turns less on single-gene determinism than on what twin correlations, polygenic association, family designs, ancestry descriptors, and causal inference can legitimately support.

What the evidence currently separates

The causal map

flowchart TD
    R[Socially assigned race] --> E[Unequal and heterogeneous environments]
    E --> S[Schooling, health, nutrition, stress, wealth, discrimination, language, test exposure]
    S --> P[Cognitive-test performance]
    A[Genetic ancestry and inherited variants] --> D[Direct genetic effects within development]
    A --> PS[Population structure]
    F[Parental genotype] --> N[Indirect genetic effects through family environment]
    D --> P
    N --> P
    PS --> C[Possible confounding in population GWAS and PGS]
    C --> P
    P --> G[Observed group averages]
    R --> G
    A -. unresolved causal magnitude for broad racial gaps .-> G
    G -. does not entail .-> Q[Eugenic or discriminatory policy]

Why “environmental” does not mean “simple”

Environmental explanations include prenatal conditions, disease and toxin exposure, nutrition, schooling, family resources, neighborhood safety, chronic stress, discrimination, peer and institutional effects, language, migration selection, and their interaction with development. Showing that one crude socioeconomic control does not remove a gap does not eliminate this entire causal field.

Why “genetic” does not mean “racial essence”

Genetic influences are developmental, probabilistic, polygenic, and environment-dependent. Ancestry is continuous and multidimensional; U.S. racial labels are historically contingent composites. A genuine direct genetic association within one population may transport poorly to another and says nothing by itself about a socially defined group mean.

Source audit of Hanania’s “Esoteric Cofnasism”

Hanania’s fundamental argument

Hanania’s core claim is not that racial hereditarianism is false. He provisionally grants Cofnas’s biological premise and agrees that mainstream institutions strongly stigmatize it. His disagreement is political and causal: the denial of racial hereditarianism does not logically require “wokeness,” and defeating wokeness does not logically require mass acceptance of hereditarianism. The many decades in which egalitarian views of innate ability coexisted with segregation, color-blind liberalism, cultural explanations, personal-responsibility conservatism, or indifference are his main historical evidence.

He therefore separates two questions that are often bundled:

1. Empirical: What, if anything, do genes contribute to measured racial-group differences?
2. Political: Which beliefs and institutions produce or restrain contemporary progressive racial politics?

The first question remains unresolved at the causal magnitude level described above. Hanania’s essay mainly addresses the second.

What the historical timeline supports

• Elite retreat began well before the 2010s. Brigham’s 1930 reversal, the broader 1930s retreat documented by historians, the prewar shift among psychologists, and UNESCO’s postwar statements all predate the “Great Awokening.”
• Retreat was uneven, not absolute. Pioneer Fund activity, post-Brown segregationist science, Jensen, Shockley, The Bell Curve, and modern hereditarian work show persistence through marginal networks and periodic mainstream controversies.
• Anti-hereditarianism did not uniquely specify a politics. NORC data show rising belief in equal learning capacity alongside continuing support for separate schools and inaccurate perceptions of opportunity. Later voters could reject inborn inferiority while endorsing cultural or individual-responsibility explanations.
• A long lag weakens a simple necessary-cause claim. If a belief became dominant by the 1940s–1950s but the alleged ideological consequence arrived in the 2010s, additional mechanisms and evidence are required.

What remains speculative or needs qualification

• The “Great Awokening” needs an operational definition. Its timing and magnitude vary depending on whether one measures survey attitudes, media language, academic theory, employment bureaucracy, law, protest, or partisan identity.
• Sequence is not a full causal test. A long interval challenges a simple account, but ideas can operate through institutions, generational replacement, or interaction with later shocks. Hanania still owes a comparative mechanism.
• Public opinion is internally inconsistent. Abstract belief in equal capacity did not imply support for integration, recognition of discrimination, or equal treatment. Poll responses must not be converted into a coherent ideology that respondents may never have held.
• The proposed fringe effect is unmeasured. The suggested roughly 15 percent zone of elite doubt, the claimed bureaucratic caution, and the “moderating” effect of a hereditarian flank are strategic conjectures, not findings established by the historical sources.
• An Overton-window effect would not settle the science. A claim can alter the range of acceptable explanations whether it is true, false, exaggerated, or strategically amplified.
• The public/private boundary is unstable. Group-level essentialist claims can shape individual hiring, schooling, policing, immigration, and reproductive policy—the very history this timeline documents. Keeping a doctrine “esoteric” does not guarantee containment.

Contrast with Jay Joseph

Joseph and Hanania intervene at different levels. Joseph attacks the scientific evidentiary basis of IQ hereditarianism; Hanania largely brackets that dispute and attacks the political necessity claim made by one hereditarian strategy. Joseph is strongest on within-group/between-group inference, conditional heritability, and confounding, but overstates the absence of molecular evidence for individual cognitive variation. Hanania is strongest on the historical timing problem, but his dissident-fringe mechanism is much less established. Neither article supplies a validated genetic decomposition of broad U.S. racial IQ gaps.

Interpretive conclusions

1. Scientific racism preceded IQ and eugenics. American racial hierarchy first borrowed authority from anatomy, craniometry, natural history, and polygenism.
2. Eugenics preceded mass IQ testing. Sterilization law began before the Army tests. IQ became an especially powerful classifier and legitimating device, not the sole cause of eugenic policy.
3. The 1910s–1920s were the decisive fusion. Pedigrees, psychometrics, racial typology, immigration politics, institutional medicine, and expanding administrative power reinforced one another.
4. Targets were broader than race but never race-neutral. Disability and class were central from the start; immigrants and racial minorities were also classified as collective hereditary threats, and later sterilization practices disproportionately harmed women of color.
5. Eugenics was politically broad. It attracted Progressive technocrats, conservatives, nativists, public-health reformers, feminists, birth-control advocates, and academic elites. Their motives and preferred policies differed.
6. World War II produced delegitimation, not a clean break. Explicit racial eugenics lost prestige, while sterilization, institutions, funders, and hereditarian questions persisted under changed language.
7. The postwar sequence supports Hanania’s timing objection. Elite and public retreat from innate racial-intelligence hierarchy long coexisted with segregation, cultural blame, individual-responsibility politics, and resistance to structural explanations. Anti-hereditarianism alone therefore does not mechanically produce contemporary “wokeness.”
8. Jensen, not Galton, is the hinge for the modern U.S. race-and-IQ debate. His 1969 article joined high within-group heritability, a partly genetic group-gap hypothesis, educational pessimism, and dysgenic concern.
9. Modern genomics changes the evidence without settling the racial question. It rejects simple genes for intelligence and supports a highly polygenic architecture. Family-based work reduces some confounding but does not turn U.S. race categories into causal genetic units.
10. Two symmetrical overclaims should be resisted. “Genes influence individual cognitive variation, therefore racial gaps are genetic” is invalid; “group-gap causation is unresolved, therefore genes do not influence individual variation” is also invalid.
11. A dissident fringe may affect discourse, but the effect is not yet demonstrated. Hanania’s Overton-window mechanism is a hypothesis about elite uncertainty and coalition positioning, not a settled historical law.
12. The normative boundary is categorical. Even a future causal genetic finding would not determine anyone’s rights, human value, educational entitlement, or fitness to reproduce.

Selected primary and high-value sources

Government, courts, and scientific institutions

• National Human Genome Research Institute — Eugenics and Scientific Racism
• National Human Genome Research Institute — Eugenics: Its Origin and Development, 1883–Present
• National Academies — Using Population Descriptors in Genetics and Genomics Research
• American Society of Human Genetics — ASHG Denounces Attempts to Link Genetics and Racial Supremacy
• U.S. Department of State, Office of the Historian — The Immigration Act of 1924
• Buck v. Bell, 274 U.S. 200 (1927)
• Skinner v. Oklahoma, 316 U.S. 535 (1942)
• Griggs v. Duke Power Co., 401 U.S. 424 (1971)
• Relf v. Weinberger, 372 F. Supp. 1196 (1974)
• Government Accountability Office — Investigation of Allegations Concerning Indian Health Service (1976)
• Larry P. v. Riles, 495 F. Supp. 926 (1979)

Historical and psychometric scholarship

• Perrin Selcer — “Beyond the Cephalic Index: Negotiating Politics to Produce UNESCO’s Scientific Statements on Race”
• National Opinion Research Center — Trends in White Attitudes Toward Negroes
• National Opinion Research Center — General Social Survey, 1994
• Thomas C. Leonard — “Finding an Unusable Past: Why Has Eugenics Gone Missing from the History of American Economics?”
• Ulric Neisser et al. — “Intelligence: Knowns and Unknowns”
• William H. Tucker — “The Funding of Scientific Racism: Wickliffe Draper and the Pioneer Fund”
• Benjamin G. Rader — “Who Was Deborah Kallikak?”
• APA — Historical Chronology: Psychology and Racism

Contemporary genetics and the current dispute

• Richard Hanania — “Esoteric Cofnasism” (supplied framing article)
• Savage et al. — GWAS of intelligence in 269,867 individuals
• Howe et al. — Within-sibship GWAS and direct genetic effects
• Martin et al. — Polygenic-score portability and health disparities
• Jay Joseph — “The IQ Hereditarian Ship Is Sinking” (contrasting maximal-skeptical critique)
• Nathan Cofnas — “Research on Group Differences in Intelligence: A Defense of Free Inquiry”

Further reading questions

• Which institutional pathway mattered most in each policy: sterilization boards, immigration committees, schools, hospitals, or courts?
• How did “feeblemindedness” move between a clinical label, an IQ threshold, a sexual-morality judgment, and a welfare classification?
• Which postwar practices are genuine institutional continuities of eugenics, and which are only analogies?
• What research design could identify a between-population genetic contribution without treating race as ancestry or importing population stratification?
• Did the disappearance of respectable hereditarians cause the 2010s contraction in acceptable explanations, or did it merely precede—or interact with—other institutional changes?
• What evidence would distinguish Hanania’s “extreme flank” mechanism from ordinary polarization, backlash, or elite cue-taking?
• How should a liberal society separate freedom of inquiry, standards of evidence, responsible communication, individual rights, and state power?

Handwritten Notebook Pages

Source

• Open Book banning · future signals · embryo-selection IQ notebook pages — start at notebook p. 187 (file not included in this release)
• Open Hereditarianism · eugenics · race and IQ notebook pages — start at notebook p. 201 (file not included in this release)
• Open IQ notebook pages — start at notebook p. 204 (file not included in this release)