In the spring of 1927, the Supreme Court of the United States was asked to decide whether the Commonwealth of Virginia could cut open a young woman named Carrie Buck and sterilize her against her will. She was seventeen when the case began, an inmate of the Virginia State Colony for Epileptics and Feebleminded, committed there after she became pregnant — the pregnancy, it would later emerge, the result of rape by a nephew of the family that had taken her in. The state's theory was that Carrie was feebleminded, that her mother Emma was feebleminded, and that Carrie's infant daughter Vivian had already, at seven months, been examined and judged "below average." Three generations, the argument ran, of hereditary defect. In an eight-to-one decision, the Court agreed. Writing for the majority, Justice Oliver Wendell Holmes Jr. — the most celebrated jurist of his era, the wounded Civil War veteran, the great liberal voice of dissent — produced one of the coldest sentences in the history of American law: "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." And then, in case the principle was not yet clear: "Three generations of imbeciles are enough."
Carrie Buck was sterilized on October 19, 1927. She was not an imbecile. School records later recovered by the historian Paul Lombardo showed her to be an ordinary child; her daughter Vivian made the honor roll before dying of an intestinal disease at age eight. The evidence of three-generation hereditary feeblemindedness was, in its entirety, an expert deposition written by a man — Harry Laughlin — who had never met any of the three women. Buck v. Bell has never been overruled. It is still, technically, good law. And it was the legal capstone of a movement that, in the first third of the twentieth century, was not a conspiracy and not a fringe — it was the consensus science of the Anglo-American establishment, funded by its richest foundations, taught in its best universities, and exported, with consequences its American architects could not have imagined, to Germany.
The word was coined in 1883 by Francis Galton, the English polymath and half-cousin of Charles Darwin. In Inquiries into Human Faculty and Its Development, Galton assembled from Greek roots a name for a science he had been circling for two decades since reading On the Origin of Species: eugenics, from eu-genes, "well-born" — "the science of improving stock," he wrote, "to give to the more suitable races or strains of blood a better chance of prevailing speedily over the less suitable."
Galton had already done the foundational statistical work, inventing correlation and regression to the mean in the course of trying to prove that genius ran in families. His insight, and his error, was to treat complex human traits — intelligence, character, criminality, "fitness" — as simple heritable quantities that could be measured, ranked, and bred for, exactly as a stockman breeds cattle. Darwin had described how nature selects. Galton proposed that man should take the wheel.
Galton's program had two faces, and both would echo for a century. Positive eugenics meant encouraging the "fit" — the talented, the healthy, the well-born — to marry early and breed freely. Negative eugenics meant discouraging, and eventually preventing, reproduction by the "unfit." Galton himself leaned toward the positive program and imagined eugenics becoming a kind of secular faith, "introduced into the national conscience, like a new religion." He endowed a research fellowship at University College London, and his disciple Karl Pearson built there the Galton Laboratory and the biometric school that gave the movement its statistical machinery.
The Eugenics Education Society, founded in London in 1907, carried the gospel into respectable British society, where it attracted an astonishing breadth of the era's progressive intelligentsia — Bernard Shaw, John Maynard Keynes, the Webbs, Harold Laski. Eugenics was not the property of the political right. It was the enthusiasm of people who believed that reason and science should govern human affairs, and that breeding was simply another domain awaiting rational management.
The idea crossed the Atlantic and found, in the United States, both money and a mechanism. Its American organizer was Charles Benedict Davenport, a Harvard-trained biologist who had grasped early the implications of the rediscovery of Mendel's laws around 1900. If traits were carried by discrete hereditary units, then defective units could in principle be tracked through pedigrees and removed from the population. In 1904 Davenport persuaded the Carnegie Institution of Washington to fund a Station for Experimental Evolution at Cold Spring Harbor on Long Island. In 1910 he opened, on the same campus, the institution that would become the nerve center of American eugenics: the Eugenics Record Office. Its operating costs were underwritten first by Mary Harriman, widow of the railroad baron, and then increasingly by the Carnegie Institution, with the The Rockefeller Dynasty philanthropies funding allied research streams. Davenport installed as superintendent a former schoolteacher named Harry Hamilton Laughlin, a man of boundless administrative energy and absolute conviction, who would become the movement's chief lobbyist and its most consequential pseudo-scientist.
The Eugenics Record Office trained field workers, dispatched them to collect family pedigrees from asylums, prisons, and poorhouses, and built a card-index archive of hundreds of thousands of Americans sorted by hereditary "fitness." The whole apparatus wore the dress of rigorous science — questionnaires, Mendelian ratios, the imprimatur of Cold Spring Harbor, which remains today one of the world's premier genetics laboratories. But the categories it measured — "feeblemindedness," "shiftlessness," "pauperism," "criminality," a supposed unit-character for nomadism — were moral and class judgments wearing the costume of genetics. The science was bad. The institutional power behind it was entirely real.
The intellectual fuel came from a genre of family-pedigree studies that read, in retrospect, as cautionary tales about confirmation bias. Richard Dugdale's The Jukes (1877) had traced a sprawling clan of New York criminals and paupers; the psychologist Henry H. Goddard's The Kallikak Family (1912) became the movement's foundational parable, contrasting the supposedly degenerate line descended from a Revolutionary soldier's dalliance with a "feebleminded" tavern girl against the upstanding line from his proper marriage. Goddard's photographs of the "bad" Kallikaks were later shown to have been crudely retouched to make the subjects look sinister and vacant. Goddard also imported the Binet intelligence test to America, coined the term "moron," and helped administer the mass IQ testing of World War I Army recruits — data that was then read backward to claim that whole nationalities were mentally deficient.
From there it became popular culture. The American Eugenics Society, founded in 1926, ran "Fitter Family" and "Better Baby" competitions at state fairs across the Midwest, where families submitted their medical and hereditary histories to be judged alongside the prize livestock, winners receiving medals reading "Yea, I have a goodly heritage." Churches held eugenics sermon contests. High-school and college biology textbooks taught Mendelian inheritance of "feeblemindedness" as settled fact. And at the movement's elite apex sat figures like Madison Grant, a wealthy New York conservationist whose 1916 The Passing of the Great Race warned that the superior "Nordic" stock of old America was being swamped by inferior southern and eastern European immigrants. Adolf Hitler reportedly wrote Grant a fan letter calling the book "my Bible." The line from a Long Island laboratory to a Munich beer hall was shorter than anyone wished to admit.
Eugenics in America was never content to remain a research program; from the start it sought the police power of the state, and it got it. Indiana passed the first compulsory sterilization law in 1907. By the late 1930s more than thirty states had followed. The model that nationalized the practice was drafted by Laughlin himself: his 1922 volume Eugenical Sterilization in the United States included a "Model Eugenical Sterilization Law" designed to survive constitutional challenge, targeting the "socially inadequate" — the feebleminded, insane, criminalistic, epileptic, inebriate, diseased, blind, deaf, deformed, and dependent. It was precisely to test such a statute that Virginia's officials engineered the friendly lawsuit of Buck v. Bell, recruiting Carrie Buck as a clean test case and arranging that the lawyer nominally defending her was a eugenics sympathizer who threw the argument.
The machinery of that case repays a close look, because it shows the movement's respectability working as a closed circuit. Dr. Albert Priddy, superintendent of the Virginia colony, wanted legal cover to keep sterilizing inmates as he had already been doing. The state's attorney Aubrey Strode drafted the statute and prosecuted the test case. Carrie's appointed defense counsel, Irving Whitehead, was a personal friend of Strode and a former director of the very colony seeking to sterilize his client; he called no witnesses, challenged none of the state's evidence, and at points argued effectively for the other side. The "expert" deposition asserting three generations of hereditary defect came from Harry Laughlin, who, as noted, had never examined the family. The whole proceeding was less an adversarial trial than a collaboration to manufacture the precedent the movement needed. Holmes — who privately relished the case, writing to a friend that he had been "amused" to deliver "a little jolt to the eugenicists' opponents" — gave it to them.
The result, after Holmes's 1927 opinion, was the legal demolition of the last barrier. The number of Americans surgically sterilized without meaningful consent under these laws is conventionally placed above sixty thousand between 1907 and the 1970s, with California alone responsible for roughly a third — its program so admired abroad that German racial hygienists studied it as a template. The victims were overwhelmingly the poor, the institutionalized, the disabled, and, increasingly as the decades wore on, women of color: the practice continued in North Carolina into the 1970s and, as the AIDS as Bioweapon node documents, shaded into the coerced sterilization of tens of thousands of Native American women by the Indian Health Service in that same decade. This is the same governmental willingness to treat marginalized bodies as expendable that animated the The Tuskegee Syphilis Experiment, run by the same Public Health Service in the same years.
The Court never fully undid its work. In Skinner v. Oklahoma (1942), the justices struck down a law mandating sterilization of certain repeat criminals, with Justice William O. Douglas warning that the power to sterilize, "in evil or reckless hands," could "cause races or types which are inimical to the dominant group to wither and disappear." But Skinner rested on an equal-protection technicality — the Oklahoma law exempted white-collar embezzlers while targeting chicken thieves — and it pointedly declined to overrule Buck v. Bell. The earlier precedent stood, and continued to be cited. As late as the 1970s, women were still being sterilized under its shadow; in 1973, two Black sisters in Alabama, Minnie Lee and Mary Alice Relf, aged fourteen and twelve, were sterilized in a federally funded clinic after their illiterate mother was induced to mark an "X" on a consent form she could not read. The eugenic statute as written had faded; the eugenic reflex had not.
Sterilization was only one prong. The other was the gate. Laughlin was appointed "Expert Eugenics Agent" to the House Committee on Immigration, and his testimony — purporting to show that immigrants from southern and eastern Europe carried inferior germ plasm and were filling America's institutions — provided the scientific veneer for the Immigration Act of 1924, the Johnson-Reed Act, which slashed quotas for Italians, Slavs, and Jews to a trickle. The historian's grim footnote is that the doors closed by that law remained closed through the 1930s, barring the European Jews who would soon need refuge most. Eugenics did not merely sterilize; it helped seal the exits.
The darkest chapter is also the most thoroughly documented, and it runs through the foundations of the American elite. German "racial hygiene" (Rassenhygiene) had developed in parallel with American eugenics, but in the 1920s the flow of money and prestige ran westward to eastward. The The Rockefeller Dynasty Foundation poured money into German research: it funded Ernst Rüdin's psychiatric-genetics department at the Kaiser Wilhelm Institute for Psychiatry in Munich, and it provided the founding grant — the Rockefeller cheque that built the building — for the Kaiser Wilhelm Institute for Anthropology, Human Heredity, and Eugenics in Berlin-Dahlem, which opened in 1927. Its first director, Eugen Fischer, and his colleague Otmar Freiherr von Verschuer became the architects of Nazi racial science. Verschuer's assistant and protégé was a young physician named Josef Mengele, who from Auschwitz would ship his mentor blood samples and the eyes and organs of murdered prisoners. The institute that received them had been built with American philanthropic money.
The exchange was not one-way charity but a genuine scientific community that regarded itself as the vanguard of progress. German and American eugenicists shared journals, citations, and podiums; Davenport sat on the editorial board of German racial-hygiene publications, and Rüdin would become a leading figure in international eugenics organizations. American work was the envy of the field precisely because America had something Germany under Weimar did not: laws on the books and tens of thousands of completed sterilizations to study. When the Nazis came to power, German hygienists did not have to invent a program from nothing. They had a working model across the Atlantic, complete with statutory language, surgical techniques, and two decades of operational data, much of it generated by the Eugenics Record Office and the California program.
When Hitler took power in 1933, one of the new regime's first acts was the Law for the Prevention of Hereditarily Diseased Offspring (Gesetz zur Verhütung erbkranken Nachwuchses), enacted in July and effective January 1934. Its drafters, as the historian Stefan Kühl established in The Nazi Connection, studied the American statutes closely; the categories of the "hereditarily ill" subject to compulsory sterilization tracked Laughlin's model law, and German eugenicists cited California's experience as proof the thing could be done at scale. The Nazi program then dwarfed its American teacher: roughly four hundred thousand people were sterilized under the 1933 law in the years before the regime escalated to the outright murder of the disabled under the "T4" euthanasia program — the operational and conceptual rehearsal for the extermination camps. The American eugenicists noticed, and many approved. Laughlin accepted an honorary doctorate from the University of Heidelberg in 1936, in gratitude for his services to "racial hygiene," and proudly displayed it. The Eugenics Record Office's own journal praised German policy.
The loop closed at Nuremberg. When Nazi doctors were tried after the war for sterilization and murder, their defense lawyers cited Buck v. Bell and the American sterilization laws — accurately — as evidence that what their clients had done was not a uniquely German barbarism but the application of a science the United States had pioneered and a practice its highest court had blessed. Holmes's sentence about three generations was read aloud in a German courtroom in defense of men who had sterilized hundreds of thousands.
The men at the German institutes mostly escaped that courtroom. Eugen Fischer retired with honors. Ernst Rüdin, who had helped draft the 1933 sterilization law and chaired the body that administered it, was classified after the war as a mere "fellow traveler," fined six hundred marks, and died in 1952 still defending his life's work. Otmar von Verschuer — Mengele's mentor, who had received and analyzed material harvested from murdered Auschwitz prisoners — was investigated, declared rehabilitated, and went on to a distinguished postwar career as professor of human genetics at the University of Münster, where he trained a generation of West German geneticists. The science was disavowed; its practitioners, for the most part, were not. This continuity of personnel is precisely why the postwar boundary between "eugenics" and "human genetics" is harder to police than the clean break of the textbooks suggests.
After 1945, the word became unspeakable, and the movement performed a careful disappearance. The institutions did not so much repudiate eugenics as rename it. The Eugenics Record Office had already closed in 1939, its funding withdrawn after the Carnegie Institution commissioned a review that found its science worthless. The Annals of Eugenics became the Annals of Human Genetics; the American Eugenics Society quietly became the Society for the Study of Social Biology; "eugenics" departments became departments of "human genetics" and "medical genetics." Much of this was sincere scientific maturation — postwar genetics genuinely was rigorous where the Eugenics Record Office had been fraudulent. But the institutional continuity, the personnel, and in some cases the underlying aspiration to improve the human hereditary stock did not vanish. They went quiet, and they changed vocabulary.
The disavowal had an official intellectual face. In 1950 and 1951, UNESCO issued statements by international panels of scientists declaring that "race" was a social myth without firm biological basis and that the differences between human groups did not justify any hierarchy — a deliberate repudiation of the framework on which eugenics had rested. Geneticists who had once spoken of germ plasm and racial fitness reoriented toward the molecular biology that exploded after Watson and Crick described the structure of DNA in 1953 — work done, as it happens, at the laboratory James Watson would later direct: Cold Spring Harbor, the old home of the Eugenics Record Office. The campus that had once indexed Americans by hereditary worth became, within two generations, a temple of legitimate molecular genetics. The address did not change. The science did. Whether the underlying impulse changed with it is the question this node exists to hold open.
And then the technology arrived to make the old dream newly plausible. Amniocentesis and prenatal screening from the 1960s onward allowed the selective abortion of fetuses with Down syndrome and other conditions; in some countries the screening regime now eliminates the great majority of such pregnancies. In-vitro fertilization brought preimplantation genetic diagnosis, the screening of embryos before transfer. In 2018 the Chinese scientist He Jiankui announced the birth of twin girls whose genomes he had edited with CRISPR, crossing the germline for the first time. The figure who named the horizon toward which this points had a revealing pedigree of his own: Julian Huxley, who coined the word "Transhumanism & The Singularity" in 1957, was a serving president of the British Eugenics Society. The philosopher Nicholas Agar gave the new project its candid name — liberal eugenics — and the link the new movement's critics insist upon is not rhetorical. The dream of designing better humans never died. It privatized.
The commercial frontier has moved faster than the ethical debate around it. Companies now market polygenic risk scoring of IVF embryos — ranking a clutch of viable embryos not just for single-gene disorders but, probabilistically, for traits like diabetes risk, heart disease, and, most controversially, predicted intelligence. The screening is sold as health-protective and is entirely legal in the United States, which, unlike much of Europe, imposes almost no regulatory ceiling on what prospective parents may select for. He Jiankui's CRISPR twins crossed a line the mainstream scientific community had agreed not to cross and earned him a Chinese prison sentence — but the capability he demonstrated is now permanent, and the gap between editing out a disease and editing in an enhancement is one of degree, not of kind. The infrastructure for a genuinely consumer eugenics — voluntary, individual, market-mediated, and aimed at "better" children — exists today and is in use.
The comfortable story is that coercive eugenics belongs to the disavowed past and only the voluntary, benign version survives. The record is less tidy. Between 2006 and 2010, the California Department of Corrections sterilized roughly 150 women prisoners through tubal ligation, often pressured into the procedure during labor or childbirth, without the legally required state approvals — a story broken by the Center for Investigative Reporting in 2013. One of the contracting physicians defended the $147,000 cost as cheap "compared to what you save in welfare paying for these unwanted children." The sentence could have been spoken in 1927. It was spoken in the twenty-first century, by a doctor employed by the state, about incarcerated women who were disproportionately poor and nonwhite.
Nor is the state-driven version confined to the United States. Singapore under Lee Kuan Yew in the 1980s ran an explicit eugenic population policy — the "Graduate Mothers Scheme" offered tax breaks and school-admission priority to children of university-educated women while paying poor, less-educated women cash to be sterilized, on the stated premise that intelligence was hereditary and the wrong people were outbreeding the right ones. And the largest coercive program of the twenty-first century has unfolded in China's Xinjiang region, where, according to research compiled by the scholar Adrian Zenz and corroborated by official Chinese statistics, authorities subjected Uyghur women to mass forced sterilization and IUD insertion after 2017, driving birth rates in the affected prefectures down by more than half in two years. The vocabulary is "population optimization" and "counter-extremism," not "racial hygiene." The operation — a state deciding which people may reproduce and which may not, and enforcing it on the bodies of a despised minority — is the thing Galton named.
Against this stands a genuine reckoning, late but real. Virginia formally apologized for Buck v. Bell and its sterilization program in 2002; California's governor apologized in 2003; North Carolina, after years of investigative reporting, established a fund in 2013 to compensate the living survivors of its sterilization program, paying out tens of thousands of dollars each to the few hundred who could be found and verified still alive. Carrie Buck, who died in 1983, was finally acknowledged as the ordinary woman she always was. These acts of contrition matter. But they also mark how recent the coercive era is — within the lifetimes of people now living — and how short the distance remains between the disavowed past and the contested present.
Here the strongest counter must be given at full strength, because it is largely correct. Modern medical genetics is not the Eugenics Record Office. The differences are not cosmetic; they are structural. Classical eugenics was coercive — it operated through state compulsion, the surgeon's knife applied to the unwilling. It was statistical and collective — its unit of concern was the race or the "germ plasm" of a nation, not the welfare of any individual. And it was scientifically false — it attributed to single Mendelian factors traits that are polygenic, environmental, or simply moral judgments. Contemporary reproductive genetics inverts all three: it is in principle voluntary, an offer made to individual prospective parents; its declared unit of concern is the well-being of the particular future child and family; and it rests on genuine molecular knowledge. A couple choosing to screen an embryo against Tay-Sachs disease is not the Commonwealth of Virginia strapping Carrie Buck to a table. Voluntary reproductive choice exercised by individuals is, the defenders argue, the precise opposite of state breeding — it is liberty, the very thing eugenics destroyed. Bioethicists such as Allen Buchanan, Dan Brock, Norman Daniels, and Daniel Wikler, in From Chance to Choice, argue that there is no coherent objection to using genetic knowledge to reduce suffering, provided the state never compels and never decides who is fit to live.
And yet the line is genuinely contested, which is why this remains a node and not a settled verdict. The critics — among them Jürgen Habermas and a range of disability scholars — press several points the optimists cannot fully answer. Choice exercised under social pressure is not obviously free: when screening for a condition becomes routine and insurers, clinicians, and neighbors expect it, the "voluntary" decision to carry a disabled child to term acquires a stigma the old eugenicists could only have envied. The aggregate of millions of private choices can reshape a population as thoroughly as any state program — a "eugenics of the market" needs no Holmes and no statute, only consumer preference and a price list. The disability-rights critique cuts deepest: a society that systematically selects against Down syndrome embryos is, whatever its intentions, broadcasting a judgment about the worth of the people who live with Down syndrome now. And the same fear that quantity threatens quality — that the wrong people are reproducing too much — never disappeared; it migrated, as the The Club of Rome & The Limits to Growth population-control literature shows, from the racial register of the 1920s into the neutral demographic language of overpopulation and overshoot. The eugenicists believed they were the rational, humane, scientific party of their day, sneered at by sentimentalists who would let the unfit multiply. They were the establishment, the foundations, the Supreme Court. That is the uncomfortable lesson the history actually teaches: not that monsters did this, but that the most respectable institutions of a confident civilization did it, and called it progress, and were applauded. Whether the new genetics is the redemption of that impulse or its quiet continuation under better tools is the question the next century will answer — and the historical record warns against the certainty that we are obviously the wiser generation.