The Science That Wasn't:
How Eugenics Gave Racism Academic Cover

Francis Galton was a Victorian polymath — he invented weather maps, developed the statistical concept of correlation, and pioneered fingerprinting. He was also Charles Darwin's cousin, and after reading On the Origin of Species in 1859, he became consumed by a single question: could human beings deliberately breed themselves to be superior? In 1883, he published Inquiries into Human Faculty and Its Development, in which he coined the term eugenics — from the Greek for "good birth."1 His definition: "the science of improving stock — not only by judicious mating, but whatever tends to give the more suitable races or strains of blood a better chance of prevailing over the less suitable than they otherwise would have had."

The framing mattered enormously. Galton did not present eugenics as an opinion or a policy preference. He presented it as science — a natural extension of Darwin's theory of evolution applied to human populations. Darwin himself was uneasy with this application: natural selection operates through random variation across millions of years; Galton proposed to direct it deliberately over generations. But the appearance of scientific rigor — statistical tables, regression curves, hereditary studies — gave eugenics a credibility that naked racism could not claim.

In 1904, Galton funded the Eugenics Record Office at University College London, the first academic institution devoted to the field.2 He endowed a chair of eugenics — held first by Karl Pearson, who would develop the foundational statistics of the field while also writing explicitly that inferior races should be eliminated "not by barbarous methods, but by seeing that the inferior races do not increase." The institutional machinery was now in place: a university department, a peer-reviewed journal (Biometrika), and a generation of students who would carry the framework to America.

Frederick Ludwig Hoffman was a German-American statistician working for the Prudential Life Insurance Company. In 1896, the American Economic Association published his study Race Traits and Tendencies of the American Negro — a 329-page statistical analysis of census and mortality data that purported to prove that Black Americans were a "dying race."1 Hoffman argued that higher rates of disease, mortality, and poverty among Black Americans were not the result of slavery's aftermath, segregation, poverty, or violence — they were inherent "race traits" that could not be changed by any social program. The logical conclusion: efforts to improve Black lives were futile against biology. The "Negro race" was destined for extinction. Emancipation had been a mistake.

The book was reviewed and praised by leading white academics. It was cited in the U.S. Census Bulletin of 1908 as authoritative. It was used by Southern segregationists to argue that the racial hierarchy was not a social injustice but a biological necessity. But the most concrete and lasting damage was done in the insurance industry.

Hoffman's employer, Prudential, and the rest of the American life insurance industry used the book to justify a policy that continued for over half a century: charging Black customers higher premiums than white customers — or refusing to insure them at all. Even Black customers who could afford insurance were systematically overcharged based on Hoffman's conclusion that Black lives were statistically shorter and therefore riskier. The practice — known as insurance redlining — meant that Black families paid more for less coverage, or could not get coverage at all, for decades. This directly compounded the racial wealth gap: families that could not insure breadwinners, could not borrow against policies, and could not leave inheritances were locked out of a primary mechanism of American wealth-building.

W.E.B. Du Bois was Hoffman's most rigorous contemporary critic. In The Philadelphia Negro (1899) and his 1906 monograph The Health and Physique of the American Negro, Du Bois reanalyzed the same data and reached exactly the opposite conclusion: the health disparities Hoffman documented were caused by "the conditions of life" — poverty, poor housing, inadequate medical care, and the cumulative effects of racial oppression — not by "race traits."2 Du Bois's rebuttal was published, was available, and was ignored. Hoffman's version was the one that was taught, cited, and acted upon. The insurance industry did not need the truth. It needed a justification. Hoffman gave it one.

The Hoffman story matters for Chain because it represents the moment when theoretical eugenics (Galton's academic framework) became operational policy (insurance discrimination, segregation justification). It is the direct link between a Victorian statistician coining a word in London and a Black family in Mississippi being denied life insurance in 1950 — which is to say, it is the link between abstract scientific racism and the concrete mechanisms that produced the racial wealth gap. Hoffman's data was bad. His influence was real. And his method — present correlation as causation, ignore confounding variables, call the result "science" — is the method that never dies.

In 1904, biologist Charles Davenport convinced the Carnegie Institution to fund a Station for Experimental Evolution at Cold Spring Harbor, Long Island. In 1910, he added the Eugenics Record Office (ERO), funded by railroad heiress Mary Harriman.3 The ERO trained fieldworkers — mostly women — to travel the country collecting family histories, producing over 750,000 individual records that Davenport used to argue that poverty, criminality, "feeblemindedness," and racial difference were inherited traits that could be bred out of the population.

The methodology was fraudulent. Davenport classified complex social conditions — poverty, alcoholism, "pauperism" — as single-gene Mendelian traits, a claim that geneticists of the era disputed. He then mapped these "inherited defects" onto racial and ethnic categories — Black Americans, Eastern European Jews, Southern Italians, and the Irish were classified as genetically predisposed to inferiority. The categories tracked the contemporary racial hierarchy of the United States with suspicious precision.

The ERO's findings became federal policy. Harry Laughlin, the ERO's superintendent, was appointed Expert Eugenics Agent to the U.S. House of Representatives Committee on Immigration.4 His testimony — citing ERO data — was central to the passage of the Immigration Act of 1924, which established national-origin quotas specifically designed to reduce immigration from Southern and Eastern Europe and to exclude Asian immigration entirely. The Act reduced annual immigration from those regions from over 800,000 to under 6,000. It also blocked the entry of Jews fleeing Nazi Germany in the 1930s.

Carrie Buck was 17 years old, poor, and had been raped by her foster family's nephew when she became pregnant. Virginia's Board of Eugenics classified her as "feebleminded" — a pseudo-scientific category applied broadly to the poor, the disabled, and inconvenient women — and ordered her sterilized. Her case went to the Supreme Court as a test of Virginia's 1924 Eugenic Sterilization Act.

On May 2, 1927, Justice Oliver Wendell Holmes — one of the most celebrated legal minds of the 20th century — wrote the 8–1 majority opinion upholding the Virginia law.5 His reasoning: "It is better for all the world if, instead of waiting to execute degenerate offspring for crime or to let them starve for their imbecility, society can prevent those who are manifestly unfit from continuing their kind." Then the sentence that became notorious: "Three generations of imbeciles are enough."

The decision unleashed forced sterilization across the country. By 1935, 33 states had passed eugenic sterilization laws modeled on Laughlin's ERO template. Over 60,000 Americans were forcibly sterilized — disproportionately Black women, poor white women in the South, women in state institutions, and women on public assistance. The practice continued into the 1970s, including forced sterilizations of Black women in Mississippi that prompted civil rights organizing and the term "Mississippi appendectomy."6 Buck v. Bell has never been formally overturned by the U.S. Supreme Court.

When the Nazi Party came to power in 1933, one of their first legislative acts was the Law for the Prevention of Hereditarily Diseased Offspring — a forced-sterilization statute modeled explicitly on Harry Laughlin's Model Eugenical Sterilization Law, the ERO template that 33 American states had already adopted.7 Nazi legal scholars studied American race law carefully. A 1935 internal memo from the Nazi Office of Racial Policy noted that the United States was "the only country that had taken practical and legislative steps toward" the eugenics program they intended to scale.

Hitler himself had read and admired American eugenicist Madison Grant's 1916 book The Passing of the Great Race, writing Grant a personal letter calling it "my Bible." The Nuremberg Laws of 1935 — which stripped Jews of citizenship and banned marriage between Jews and non-Jews — were drafted with direct reference to American miscegenation statutes, which had banned interracial marriage in most Southern states since Reconstruction.8 Nazi lawyers debated which U.S. state laws went "too far" in their racial classifications — in some cases finding American law more extreme than what they intended to implement.

In 1936, Cold Spring Harbor's Harry Laughlin received an honorary doctorate from Heidelberg University — one of Germany's oldest and most prestigious — for his contributions to "racial hygiene." He accepted. By that point, the Nazi sterilization program had already forcibly sterilized 225,000 Germans. It would ultimately sterilize over 400,000 before the Holocaust's extermination program began. The eugenics laboratory and the death camp were not separate institutions — one produced the framework that made the other legible as policy.

Eugenics was discredited as science by the 1940s. The geneticists who had opposed it from the beginning — Thomas Hunt Morgan, Hermann Muller, Theodosius Dobzhansky — had been right: complex social traits cannot be mapped onto single genes; the ERO data was methodologically worthless; the racial hierarchy it described was a social construction, not a biological fact. The Carnegie Institution closed the Eugenics Record Office in 1939. The American Eugenics Society renamed itself. The field retreated from universities.

The laws it had produced did not retreat. The Immigration Act of 1924 was not repealed until 1965. During those 41 years, it shaped the demographic composition of the United States by design — maintaining an overwhelmingly white country by excluding the people eugenicists had classified as inferior. The FHA Underwriting Manual of 1938 — which instructed appraisers to rate "racial character" as a negative factor — directly descended from the same framework: the idea that the presence of Black people, like the presence of a "hereditary defect," reduced the value of what surrounded them.9

Forced sterilization of Black and Native American women by federally funded programs continued into the 1970s. A 1976 Government Accountability Office investigation found that the Indian Health Service had sterilized between 25 and 50 percent of Native American women in certain regions between 1970 and 1976.10 The science was gone. The power to decide which bodies were allowed to reproduce remained.

Galton's name was on a UCL lecture theatre until 2020. Karl Pearson's name was on a UCL building. Both were removed after a university inquiry into eugenics at UCL. Francis Galton is still taught in introductory statistics courses for his contributions to correlation and regression — the same mathematical tools he used to "prove" racial hierarchy — without that context.