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Scientific racism, sometimes termed biological racism, is the pseudoscience belief that the Human is divided into biologically distinct taxa called "races", and that empirical evidence exists to support or justify racial discrimination, racial inferiority, or racial superiority."Ostensibly scientific": cf. Theodore M. Porter, Dorothy Ross (eds.) 2003. The Cambridge History of Science: Volume 7, The Modern Social Sciences Cambridge University Press, p. 293 "Race has long played a powerful popular role in explaining social and cultural traits, often in ostensibly scientific terms"; Adam Kuper, Jessica Kuper (eds.), The Social Science Encyclopedia (1996), "Racism", p. 716: "This sc. racism entailed the use of 'scientific techniques', to sanction the belief in European and American racial Superiority"; Routledge Encyclopedia of Philosophy: Questions to Sociobiology (1998), "Race, theories of", p. 18: "Its exponents sc. tended to equate race with species and claimed that it constituted a scientific explanation of human history"; Terry Jay Ellingson, The myth of the noble savage (2001), 147ff. "In scientific racism, the racism was never very scientific; nor, it could at least be argued, was whatever met the qualifications of actual science ever very racist" (p. 151); Paul A. Erickson, Liam D. Murphy, A History of Anthropological Theory (2008), p. 152: "Scientific racism: Improper or incorrect science that actively or passively supports racism".. "Few tragedies can be more extensive than the stunting of life, few injustices deeper than the denial of an opportunity to strive or even to hope, by a limit imposed from without, but falsely identified as lying within". Before the mid-20th century, scientific racism was accepted throughout the scientific community, but it is no longer considered scientific. The division of humankind into biologically separate groups, along with the assignment of particular physical and mental characteristics to these groups through constructing and applying corresponding explanatory models, is referred to as racialism, racial realism, race realism, or race science by those who support these ideas. Modern scientific consensus rejects this view as being irreconcilable with modern Genetics.Templeton, A. (2016). "Evolution and Notions of Human Race". In Losos J. & Lenski R. (Eds.), How Evolution Shapes Our Lives: Essays on Biology and Society (pp. 346–361). Princeton; Oxford: Princeton University Press. . That this view reflects the consensus among American anthropologists is stated in: See also:
Scientific racism misapplies, misconstrues, or distorts anthropology (notably physical anthropology), craniometry, evolutionary biology, and other disciplines or pseudo-disciplines through proposing anthropological typologies to classify human populations into physically discrete human races, some of which might be asserted to be superior or inferior to others.
During the 20th century, anthropologist Franz Boas and biologists Julian Huxley and Lancelot Hogben were among the earliest leading critics of scientific racism. Skepticism towards the validity of scientific racism grew during the interwar period, (2025). 9780192805904, Oxford University Press. ISBN 9780192805904 and by the end of World War II, scientific racism in theory and action was formally denounced, especially in UNESCO's early antiracist statement, "The Race Question" (1950): "The biological fact of race and the myth of 'race' should be distinguished. For all practical social purposes, 'race' is not so much a biological phenomenon as a social myth. The myth of 'race' has created an enormous amount of human and social damage. In recent years, it has taken a heavy toll in human lives, and caused untold suffering".UNESCO, The Race Question, p. 8 Since that time, developments in human evolutionary genetics and physical anthropology have led to a new consensus among anthropologists that human races are a sociopolitical phenomenon rather than a biological one. (2025). 9780521518062, Cambridge University Press. ISBN 9780521518062
The term scientific racism was popularized by Stephen Jay Gould who used it in his 1981 book The Mismeasure of Man to describe the historical role of science in propagating the ideal of white racial superiority. Today, the term is generally used pejoratively when applied to more modern theories, such as those in The Bell Curve (1994). Critics argue that such works postulate racist conclusions, such as a genetic connection between race and intelligence, that are unsupported by available evidence. Publications such as the Mankind Quarterly, founded explicitly as a "race-conscious" journal, are generally regarded as platforms of scientific racism because they publish fringe interpretations of human evolution, intelligence, ethnography, language, mythology, archaeology, and race.
In the essay, he distinguished four different races:
A product of French salon culture, the essay placed an emphasis on different kinds of female beauty. Bernier emphasized that his novel classification was based on his personal experience as a traveler in different parts of the world. Bernier offered a distinction between essential genetic differences and accidental ones that depended on environmental factors. He also suggested that the latter criterion might be relevant to distinguish sub-types.Joan-Pau Rubiés, «Race, climate and civilization in the works of François Bernier», L'inde des Lumières. Discours, histoire, savoirs (XVIIe-XIXe siècle), Purushartha 31, París, Éditions de l'EHESSS, 2013, pp. 53–78. His biological classification of racial types never sought to go beyond physical traits, and he also accepted the role of climate and diet in explaining degrees of human diversity. Bernier had been the first to extend the concept of "species of man" to racially classify the entirety of humanity, but he did not establish a cultural hierarchy between the so-called "races" that he had conceived. On the other hand, he clearly placed white Europeans as the norm from which other "races" deviated.Stuurman, S. (2000), "François Bernier and the invention of racial classification", History Workshop Journal, 50, pp. 1–21.
The qualities which he attributed to each race were not strictly Eurocentrism, because he thought that peoples of temperate Europe, the Americas, and India—although culturally very different from one another—belonged to roughly the same racial group, and he explained the differences between the civilizations of India (his main area of expertise) and Europe through climate and institutional history. By contrast, he emphasized the biological difference between Europeans and Africans, and made very negative comments towards the Sámi (Lapps) of the coldest climates of Northern Europe, and about Africans living at the Cape of Good Hope. For example, Bernier wrote: "The 'Lappons' compose the 4th race. They are a small and short race with thick legs, wide shoulders, a short neck, and a face that I don't know how to describe, except that it's long, truly awful, and seems reminiscent of a bear's face. I've only ever seen them twice in Danzig, but according to the portraits I've seen, and from what I've heard from a number of people, they're ugly animals".French introduction by France Bhattacharya to an edition of Voyage dans les Etats du Grand Mogol (Paris: Fayard, 1981). The significance of Bernier's ideology for the emergence of what Joan-Pau Rubiés called the "modern racial discourse" has been debated, with Siep Stuurman considering it the beginning of modern racial thought, while Rubiés believes it is less significant if Bernier's entire view of humanity is taken into account.
There are disagreements about the basis for Linnaeus' human taxa. On the one hand, his harshest critics say the classification was not only ethnocentric, but seemed to be based upon skin colour. Renato G. Mazzolini argued that classifications based on skin colour, at its core, were a white/black polarity, and that Linnaeus' thinking became paradigmatic for later racist beliefs.Renato G Mazzolini – Skin Color and the Origin of Physical Anthropology. in: Reproduction, Race, and Gender in Philosophy and the Early Life Sciences. Ed. Susanne Lettow. 2014 On the other hand, Quintyn (2010) points out that some authors believed that Linnaeus' classification was based upon geographical distribution, being cartographically-based, and not hierarchical.Conrad B. Quintyn (2010), "The Existence Or Non-existence of Race?, Teneo Press p. 17 In the opinion of Kenneth A. R. Kennedy (1976), Linnaeus certainly considered his own culture as superior, but his motives for the classification of human varieties were not race-centered.Kenneth A.R. Kennedy (1976), "Human Variation in Space and Time". Wm. C. Brown Company, p. 25. Kennedy writes that while "Linnaeus was the first to use biological traits as a basis for further subdivisions of the species into varieties. It would be unfair to ascribe racist motives to this effort". Paleontologist Stephen Jay Gould (1994) argued that the taxa was "not in the ranked order favored by most Europeans in the racist tradition", and that Linnaeus' division was influenced by the medical Humorism, which said that a person's temperament may be related to biological fluids.Rachel N. Hastings (2008), "Black Eyez: Memoirs of a Revolutionary", p. 17 In a 1994 essay, Gould added: "I don't mean to deny that Linnaeus held conventional beliefs about the superiority of his own European variety over others... nevertheless, and despite these implications, the overt geometry of Linnaeus' model is not linear or hierarchical".
In a 2008 essay published by the Linnean Society of London, Marie-Christine Skuncke interpreted Linnaeus' statements as reflecting a view that "Europeans' superiority resides in "culture", and that the decisive factor in Linnaeus' taxa was "culture", not race". Thus, regarding this topic, Skuncke considers Linnaeus' view as merely "eurocentric", arguing that Linnaeus never called for racist action, and did not use the word "race", which was only introduced later "by his French opponent, Buffon".Mary J. Morris & Leonie Berwick (2008), The Linnaean Legacy: Three Centuries after his birth , A forum for natural history. The Linnean Special Issue No. 8. Linnean Society of London, Burlington House, Piccadilly, London. Was Linnaeus a racist?, p. 25 However, the anthropologist Ashley Montagu, in his book Man's Most Dangerous Myth: the Fallacy of Race, points out that Buffon, indeed "the enemy of all rigid classifications",Montagu, A. (2001 edition) Man's Most Dangerous Myth: The Fallacy of Race. New York: Columbia University Press, p. 69. was diametrically opposed to such broad categories, and did not use the word "race" to describe them. "It was quite clear, after reading Buffon, that he uses the word in no narrowly defined, but rather in a general sense", wrote Montagu, pointing out that Buffon did employ the French word la race, but as a collective term for whatever population he happened to be discussing at the time; for instance: "The Danish, Swedish, and Muscovite Laplanders, the inhabitants of Nova-Zembla, the Borandians, the Samoiedes, the Ostiacks of the old continent, the Greenlanders, and the savages to the north of the Esquimaux Indians, of the new continent, appear to be of one common race".Buffon, trans. Barr, (1807) Natural History, General and Particular, volume 4, p.191
Scholar Stanley A. Rice agrees that Linnaeus' classification was not meant to "imply a hierarchy of humanness or superiority";Stanley A. Rice (2009), "Encyclopedia of Evolution", Infobase Publishing, p. 195. Stanley states: "Even though the prejudice and racism of the attributes are obvious to modern scientists, Linnaeus did not apparently mean to imply a hierarchy of humanness or superiority". however, modern critics regard Linnaeus' classification as obviously and erroneous for having included anthropological, non-biological features, such as customs or traditions.
According to Blumenbach, there are five races, all belonging to a single species: Caucasian race, Mongoloid, Negroid, American, and the Malay race. Blumenbach stated: "I have allotted the first place to the Caucasian for the reasons given below, which make me esteem it the primeval one".Emmanuel Chukwudi Eze, Race and the Enlightenment: A Reader, 1997, p. 84
Before James Hutton and the emergence of scientific geology, many believed the Earth was only 6,000 years old. Buffon had conducted experiments with heated balls of iron, which he believed were a model for the Earth's core, and concluded that the Earth was 75,000 years old, but did not extend the time since Adam and the origin of humanity back more than 8,000 years—not much further than the 6,000 years of the prevailing Ussher chronology subscribed to by most of the monogenists. Opponents of monogenism believed that it would have been difficult for races to change markedly in such a short period of time.
Meiners hypothesized about how the Negro felt less pain than any other race, and lacked in emotions. Meiners wrote that the Negro had thick nerves, and thus, was not sensitive like the other races. He went so far as to say that the Negro possessed "no human, barely any animal, feeling". Meiners described a story where a Negro was condemned to death by being burned alive. Halfway through the burning, the Negro asked to smoke a pipe, and smoked it like nothing was happening while he continued to be burned alive. Meiners studied the anatomy of the Negro, and came to the conclusion that Negroes were all carnivores, based upon his observations that Negroes had bigger teeth and jaws than any other race. Meiners claimed the skull of the Negro was larger, but the brain of the Negro was smaller than any other race. Meiners theorized that the Negro was the most unhealthy race on Earth because of its poor diet, mode of living, and lack of morals.
Meiners studied the diet of the Americans, and said they fed off any kind of "foul offal", and consumed copious amounts of alcohol. He believed their skulls were so thick that the blades of Spanish swords shattered on them. Meiners also claimed the skin of an American is thicker than that of an ox.
Meiners wrote that the noblest race was the Celts. This was based upon assertions that they were able to conquer various parts of the world, they were more sensitive to heat and cold, and their delicacy is shown by the way they are selective about what they eat. Meiners claimed that Slavs are an inferior race, "less sensitive and content with eating rough food". He described stories of Slavs allegedly eating poisonous fungi without coming to any harm. He claimed that their medical techniques were also counterproductive; as an example, Meiners described their practice of warming up sick people in ovens, then making them roll in the snow.
However, by 1791, Jefferson had to reassess his earlier suspicions of whether blacks were capable of intelligence when he was presented with a letter and almanac from Benjamin Banneker, an educated black mathematician. Delighted to have discovered scientific proof for the existence of black intelligence, Jefferson wrote to Banneker:(Jefferson's Letter to Benjamin Banneker, August 30, 1791. Original source: The Papers of Thomas Jefferson, vol 22, August 6, 1791 – December 31, 1791, ed. Charles T. Cullen. Princeton: Princeton University Press, 1986, pp. 49–54.)
Regarding Negroes, Cuvier wrote:Georges Cuvier, The Animal Kingdom: Arranged in Conformity with its Organization, Translated from the French by H.M. Murtrie, p. 50.
He thought Adam and Eve were Caucasian, and hence, the original race of mankind. The other two races arose by survivors escaping in different directions after a major catastrophe hit the earth approximately 5,000 years ago. Cuvier theorized that the survivors lived in complete isolation from each other, and developed separately as a result.Colin Kidd, The Forging of Races: Race and Scripture in the Protestant Atlantic World, 1600–2000, 2006, p. 28
One of Cuvier's pupils, Friedrich Tiedemann, was among the first to make a scientific contestation of racism. Tiedemann asserted that based upon his documentation of craniometric and brain measurements of Europeans and black people from different parts of the world, that the then-common European belief that Negroes have smaller brains, and are thus intellectually inferior, was scientifically unfounded, and based merely on the prejudice of travellers and explorers.
Gobineau believed that the different races originated in different areas, the white race had originated somewhere in Siberia, the Asians in the Americas and the blacks in Africa. He believed that the white race was superior, writing:
Gobineau later used the term "Aryan race" to describe the Germanic peoples (la race germanique).A. J. Woodman, 2009, The Cambridge Companion to Tacitus, p. 294. (The Germanic race was also regarded by Gobineau as beautiful, honourable and destined to rule: 'cette illustre famille humaine, la plus noble'. While Aryan was originally an endonym used only by Indo-Iranians, "Aryan" became, partly because of the Essai a racial designation of a race, which Gobineau specified as 'la race germanique'.
Gobineau's works were also influential to the Nazi Party, which published his works in German. They played a key role in the master race theory of Nazism.
Darwin's influential 1859 book On the Origin of Species did not discuss human origins. The extended wording on the title page, which adds by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life, uses the general terminology of biological races as an alternative for "varieties" such as "the several races, for instance, of the cabbage", and does not carry the modern connotation of human races. In The Descent of Man, and Selection in Relation to Sex (1871), Darwin examined the question of "Arguments in favour of, and opposed to, ranking the so-called races of man as distinct species" and reported no racial distinctions that would indicate that human races are discrete species."It may be doubted whether any character can be named which is distinctive of a race and is constant... they graduate into each other, and.. it is hardly possible to discover clear distinctive characters between them... As it is improbable that the numerous and unimportant points of resemblance between the several races of man in bodily structure and mental faculties (I do not here refer to similar customs) should all have been independently acquired, they must have been inherited from progenitors who had these same characters.", Charles Darwin, The Descent of Man p. 225 onwards.
The historian Richard Hofstadter wrote:
According to the historian Gertrude Himmelfarb, "The subtitle of ''The made a convenient motto for racists: 'The Preservation of Favoured Races in the Struggle for Life.' Darwin, of course, took 'races' to mean varieties or species; but it was no violation of his meaning to extend it to human races.... Darwin himself, in spite of his aversion to slavery, was not averse to the idea that some races were more fit than others".
On the other hand, Robert Bannister defended Darwin on the issue of race, writing that "Upon closer inspection, the case against Darwin himself quickly unravels. An ardent opponent of slavery, he consistently opposed the oppression of nonwhites... Although by modern standards The Descent of Man is frustratingly inconclusive on the critical issues of human equality, it was a model of moderation and scientific caution in the context of midcentury racism".
According to Myrna Perez Sheldon, Darwin believed that different races gained their 'population-level characteristics' via sexual selection. Previously, race theorists conceptualized race as a 'stable blood essence' and that these 'essences' mixed when miscegenation occurred.
Haeckel also wrote that Negroes have stronger and more freely movable toes than any other race which is evidence that Negroes are related to apes because when apes stop climbing in trees they hold on to the trees with their toes. Haeckel compared Negroes to "four-handed" apes. Haeckel also believed Negroes were savages and that whites were the most civilised.Gustav Jahoda, Images of Savages: Ancients sic Roots of Modern Prejudice in Western Culture, 1999, p. 83
In Morton's Crania Americana, his claims were based on craniometry data, that the Caucasians had the biggest brains, averaging 87 cubic inches, Native Americans were in the middle with an average of 82 cubic inches and Negroes had the smallest brains with an average of 78 cubic inches. and George Robins Gliddon implied that "Negroes" were a Creationism rank between "Greeks" and chimpanzees|alt=|left]]In The Mismeasure of Man (1981), the evolutionary biologist and historian of science Stephen Jay Gould argued that Samuel Morton had falsified the craniometric data, perhaps inadvertently over-packing some skulls, to so produce results that would legitimize the racist presumptions he was attempting to prove. A subsequent study by the anthropologist John Michael found Morton's original data to be more accurate than Gould describes, concluding that "contrary to Gould's interpretation... Morton's research was conducted with integrity". Jason Lewis and colleagues reached similar conclusions as Michael in their reanalysis of Morton's skull collection; however, they depart from Morton's racist conclusions by adding that "studies have demonstrated that modern human variation is generally continuous, rather than discrete or "racial", and that most variation in modern humans is within, rather than between, populations".
In 1873, Paul Broca, founder of the Anthropological Society of Paris (1859), found the same pattern of measures—that Crania Americana reported—by weighing specimen brains at autopsy. Other historical studies, proposing a black race–white race, intelligence–brain size difference, include those by Bean (1906), Mall (1909), Pearl (1934), and Vint (1934).
Later, in The Descent of Man (1871), Charles Darwin proposed the single-origin hypothesis, i.e., monogenism—mankind has a common genetic ancestry, the races are related, opposing everything that the polygenism of Nott and Gliddon proposed.
Vacher de Lapouge's classification was mirrored in William Z. Ripley in The Races of Europe (1899), a book which had a large influence on American white supremacism. Ripley even made a map of Europe according to the alleged cephalic index of its inhabitants. He was an important influence of the American eugenist Madison Grant.
Furthermore, according to John Efron of Indiana University, the late 19th century also witnessed "the scientizing of anti-Jewish prejudice", stigmatizing Jews with male menstruation, pathological hysteria, and nymphomania.Richard Bodek. " Review of John M. Efron, Defenders of the Race: Jewish Doctors & Race Science in Fin-de-Siècle Europe", H-SAE, H-Net Reviews, May 1996 At the same time, several Jews, such as Joseph Jacobs or Samuel Weissenberg, also endorsed the same pseudoscientific theories, convinced that the Jews formed a distinct race. Chaim Zhitlovsky also attempted to define Yiddishkayt (Ashkenazi Jewishness) by turning to contemporary racial theory.
Joseph Deniker (1852–1918) was one of William Z. Ripley's principal opponents; whereas Ripley maintained, as did Vacher de Lapouge, that the European populace comprised three races, Joseph Deniker proposed that the European populace comprised ten races (six primary and four sub-races). Furthermore, he proposed that the concept of "race" was ambiguous, and in its stead proposed the compound word "ethnic group", which later prominently featured in the works of Julian Huxley and Alfred C. Haddon. Moreover, Ripley argued that Deniker's "race" idea should be denoted a "type", because it was less biologically rigid than most racial classifications.
The State Institute for Racial Biology (Swedish: Statens Institut för Rasbiologi) and its director Herman Lundborg in Sweden were active in racist research. Furthermore, much of early research on Ural-Altaic languages was coloured by attempts at justifying the view that European peoples east of Sweden were Asian and thus of an inferior race, justifying colonialism, eugenics and racial hygiene. The book The Passing of the Great Race (Or, The Racial Basis of European History) by American eugenicist, lawyer, and amateur anthropologist Madison Grant was published in 1916. Though influential, the book was largely ignored when it first appeared, and it went through several revisions and editions. Nevertheless, the book was used by people who advocated restricted immigration as justification for what became known as scientific racism.
At the time of the American Civil War (1861–1865), the matter of miscegenation prompted studies of ostensible physiological differences between Caucasian race and . Early anthropology, such as Josiah Clark Nott, George Robins Gliddon, Robert Knox, and Samuel George Morton, aimed to scientifically prove that Negroes were a human species different from the white people; that the rulers of Ancient Egypt were not African; and that mixed-race offspring (the product of miscegenation) tended to physical weakness and infertility. After the Civil War, Southern (Confederacy) physicians wrote textbooks of scientific racism based upon studies claiming that black freemen (ex-slaves) were becoming extinct, because they were inadequate to the demands of being a free man—implying that black people benefited from enslavement.
In Medical Apartheid, Harriet A. Washington noted the prevalence of two different views on blacks in the 19th century: the belief that they were inferior and "riddled with imperfections from head to toe", and the idea that they did not know true pain and suffering because of their primitive nervous systems (and that slavery was therefore justifiable). Washington noted the failure of scientists to accept the inconsistency between these two viewpoints, writing that:
Even after the end of the Civil War, some scientists continued to justify the institution of slavery by citing the effect of topography and climate on racial development. Nathaniel Shaler, a prominent geologist at Harvard University from 1869 to 1906, published the book Man and the Earth in 1905 describing the physical geography of different continents and linking these geologic settings to the intelligence and strength of human races that inhabited these spaces. Shaler argued that North American climate and geology was ideally suited for the institution of slavery.
The Carnegie Commission on the Poor White Problem in South Africa played a key role in establishing apartheid in South Africa. According to one memorandum sent to Frederick Keppel, then president of the Carnegie Corporation, there was "little doubt that if the natives were given full economic opportunity, the more competent among them would soon outstrip the less competent whites". Keppel's support for the project of creating the report was motivated by his concern with the maintenance of existing racial boundaries. The preoccupation of the Carnegie Corporation with the so-called poor white problem in South Africa was at least in part the outcome of similar misgivings about the state of poor whites in the southern United States.
The report was five volumes in length. Around the start of the 20th century, white Americans, and whites elsewhere in the world, felt uneasy because poverty and economic depression seemed to strike people regardless of race.
Though the ground work for apartheid began earlier, the report provided support for this central idea of black inferiority. This was used to justify racial segregation and discrimination in the following decades. The report expressed fear about the loss of white racial pride, and in particular pointed to the danger that the poor white would not be able to resist the process of "Africanisation".
Although scientific racism played a role in justifying and supporting institutional racism in South Africa, it was not as important in South Africa as it has been in Europe and the United States. This was due in part to the "poor white problem", which raised serious questions for supremacists about white racial superiority. Since poor whites were found to be in the same situation as natives in the African environment, the idea that intrinsic white superiority could overcome any environment did not seem to hold. As such, scientific justifications for racism were not as useful in South Africa.
Racial hygiene was historically tied to traditional notions of public health, but with emphasis on heredity—what philosopher and historian Michel Foucault has called state racism. In 1869, Francis Galton (1822–1911) proposed the first social measures meant to preserve or enhance biological characteristics, and later coined the term eugenics. Galton, a statistician, introduced correlation and regression analysis and discovered regression toward the mean. He was also the first to study human differences and inheritance of intelligence with statistical methods. He introduced the use of questionnaires and surveys to collect data on population sets, which he needed for genealogical and biographical works and for anthropometrics studies. Galton also founded psychometrics, the science of measuring mental faculties, and differential psychology, a branch of psychology concerned with psychological differences between people rather than common traits.
Like scientific racism, eugenics grew popular in the early 20th century, and both ideas influenced Nazi racial policies and Nazi eugenics. In 1901, Galton, Karl Pearson (1857–1936) and Walter F. R. Weldon (1860–1906) founded the Biometrika scientific journal, which promoted biometrics and statistical analysis of heredity. Charles Davenport (1866–1944) was briefly involved in the review. In Race Crossing in Jamaica (1929), he made statistical arguments that biological and cultural degradation followed white and black miscegenation. Davenport was connected to Nazi Germany before and during World War II. In 1939 he wrote a contribution to the festschrift for Otto Reche (1879–1966), who became an important figure within the plan to remove populations considered "inferior" from eastern Germany.
In his book The Mismeasure of Man, Stephen Jay Gould argued that intelligence testing results played a major role in the passage of the Immigration Act of 1924 that restricted immigration to the United States. However, Mark Snyderman and Richard J. Herrnstein, after studying the Congressional Record and committee hearings related to the Immigration Act, concluded "the intelligence testing community did not generally view its findings as favoring restrictive immigration policies like those in the 1924 Act, and Congress took virtually no notice of intelligence testing".
Juan N. Franco contested the findings of Snyderman and Herrnstein. Franco stated that even though Snyderman and Herrnstein reported that the data collected from the results of the intelligence tests were in no way used to pass The Immigration Act of 1924, the IQ test results were still taken into consideration by legislators. As suggestive evidence, Franco pointed to the following fact: Following the passage of the immigration act, information from the 1890 census was used to set quotas based on percentages of immigrants coming from different countries. Based on these data, the legislature restricted the entrance of immigrants from southern and eastern Europe into the United States and allowed more immigrants from northern and Western Europe into the country. The use of the 1900, 1910 or 1920 census data sets would have resulted in larger numbers of immigrants from southern and eastern Europe being allowed into the U.S. However, Franco pointed out that using the 1890 census data allowed congress to exclude southern and eastern Europeans (who performed worse on IQ tests of the time than did western and northern Europeans) from the U.S. Franco argued that the work Snyderman and Herrnstein conducted on this matter neither proved or disproved that intelligence testing influenced immigration laws.
During World War II, Nazi racialist beliefs became anathema in the United States, and Franz Boas such as Ruth Benedict consolidated their institutional power. After the war, discovery of the Holocaust and Nazi abuses of scientific research (such as Josef Mengele's ethical violations and other revealed at the Nuremberg Trials) led most of the scientific community to repudiate scientific support for racism.
Propaganda for the Nazi eugenics program began with propaganda for eugenic sterilization. Articles in Neues Volk described the appearance of the mentally ill and the importance of preventing such births. Photographs of mentally incapacitated children were juxtaposed with those of healthy children. The film Das Erbe showed conflict in nature in order to legitimize the Law for the Prevention of Hereditarily Diseased Offspring by sterilization.
Although the child was "the most important treasure of the people", this did not apply to all children, even German ones, only to those with no hereditary weaknesses. Nazi Germany's racially based social policies placed the improvement of the Aryan race through eugenics at the center of Nazi ideology. People targeted by this policy included criminals, "degenerates", Gleichschaltung who opposed the Nazification of Germany, the "feeble minded", Jewish people, homosexuals, the insane, idle and "weak". As they were seen as people who fit the criteria of "life unworthy of life" (), they should thus not be allowed to procreate and pass on their genes or heredity. Although they were still regarded as "Aryan", Nazi ideology deemed Slavs (i.e., Generalplan Ost, etc.) to be racially inferior to the Germanic master race, suitable for expulsion, enslavement, or even extermination.
Adolf Hitler banned intelligence quotient (IQ) testing for being "Jewish".
Scientific racism was also used as a justification for the Emergency Quota Act of 1921 and the Immigration Act of 1924 (Johnson–Reed Act), which imposed racial quotas limiting Italian American immigration to the United States and immigration from other southern European and eastern European nations. Proponents of these quotas, who sought to block "undesirable" immigrants, justifying restrictions by invoking scientific racism.Christa Wirth, Memories of Belonging: Descendants of Italian Migrants to the United States, 1884–Present (Brill Publishers, 2015), pp. 190, 198.
Lothrop Stoddard published many racialist books on what he saw as the peril of immigration, his most famous being The Rising Tide of Color Against White World-Supremacy in 1920. In this book he presented a view of the world situation pertaining to race focusing concern on the coming population explosion among the "colored" peoples of the world and the way in which "white world-supremacy" was being lessened in the wake of World War I and the collapse of colonialism.
Stoddard's analysis divided world politics and situations into "white", "yellow", "black", "Amerindian", and "brown" peoples and their interactions. Stoddard argued race and heredity were the guiding factors of history and civilization, and that the elimination or absorption of the "white" race by "colored" races would result in the destruction of Western civilization. Like Madison Grant, Stoddard divided the white race into three main divisions: Nordic, Alpine, and Mediterranean. He considered all three to be of good stock, and far above the quality of the colored races, but argued that the Nordic was the greatest of the three and needed to be preserved by way of eugenics. Unlike Grant, Stoddard was less concerned with which varieties of European people were superior to others (Nordic theory), but was more concerned with what he called "bi-racialism", seeing the world as being composed of simply "colored" and "white" races. In the years after the Great Migration and World War I, Grant's racial theory would fall out of favor in the U.S. in favor of a model closer to Stoddard's.
An influential publication was The Races of Europe (1939) by Carleton S. Coon, president of the American Association of Physical Anthropologists from 1930 to 1961. Coon was a proponent of multiregional origin of modern humans. He divided Homo sapiens into five main races: Caucasoid, Mongoloid (including Native Americans), Australoid, Congoid, and Capoid.
Coon's school of thought was the object of increasing opposition in mainstream anthropology after World War II. Ashley Montagu was particularly vocal in denouncing Coon, especially in his Man's Most Dangerous Myth: The Fallacy of Race. By the 1960s, Coon's approach had been rendered obsolete in mainstream anthropology, but his system continued to appear in publications by his student John Lawrence Angel as late as in the 1970s.
In the late 19th century, the Plessy v. Ferguson (1896) United States Supreme Court decision—which upheld the constitutional legality of racial segregation under the doctrine of "separate but equal"—was intellectually rooted in the racism of the era, as was the popular support for the decision. Later, in the mid-20th century, the Supreme Court's Brown v. Board of Education of Topeka (1954) decision rejected Racism arguments about the "need" for racial segregation—especially in Public education.
In 1960, the journal Mankind Quarterly was founded, which is commonly described as a venue for scientific racism and white supremacy,
In April 1966, Alex Haley interviewed American Nazi Party founder George Lincoln Rockwell for Playboy. Rockwell justified his belief that blacks were inferior to whites by citing a long 1916 study by G. O. Ferguson which claimed to show that the intellectual performance of black students was correlated with their percentage of white ancestry, stating "pure negroes, negroes three-fourths pure, mulattoes and quadroons have, roughly, 60, 70, 80 and 90 percent, respectively, of white intellectual efficiency". Playboy later published the interview with an editorial note claiming the study was a "discredited ... pseudoscientific rationale for racism".
International bodies such as UNESCO attempted to draft resolutions that would summarize the state of scientific knowledge about race and issued calls for the resolution of racial conflicts. In its 1950 "The Race Question", UNESCO did not reject the idea of a biological basis to racial categories, but instead defined a race as: "A race, from the biological standpoint, may therefore be defined as one of the group of populations constituting the species Homo sapiens", which were broadly defined as the Caucasian race, Mongoloid race, Negroid race races but stated that "It is now generally recognized that intelligence tests do not in themselves enable us to differentiate safely between what is due to innate capacity and what is the result of environmental influences, training and education".
Despite scientific racism being largely dismissed by the scientific community after World War II, some researchers have continued to propose theories of racial superiority in the past few decades. These authors themselves, while seeing their work as scientific, may dispute the term racism and may prefer terms such as "race realism" or "racialism". In 2018, British science journalist and author Angela Saini expressed strong concern about the return of these ideas into the mainstream. Saini followed up on this idea with her 2019 book .
One such post-World War II scientific racism researcher is Arthur Jensen. His most prominent work is in which he supports the theory that black people are inherently less intelligent than whites. Jensen argues for differentiation in education based on race, stating that educators must "take full account of all the facts of students' nature". Responses to Jensen criticized his lack of emphasis on environmental factors. Psychologist Sandra Scarr describes Jensen's work as "conjuring up images of blacks doomed to failure by their own inadequacies".
J. Philippe Rushton, president of the Pioneer Fund ( Race, Evolution, and Behavior) and a defender of Jensen's The g Factor, also has multiple publications perpetuating scientific racism. Rushton argues "race differences in brain size likely underlie their multifarious life history outcomes". Rushton's theories are defended by other scientific racists such as Glayde Whitney. Whitney published works suggesting higher crime rates among people of African descent can be partially attributed to genetics. Whitney draws this conclusion from data showing higher crime rates among people of African descent across different regions. Other researchers point out that proponents of a genetic crime-race link are ignoring confounding social and economic variables, drawing conclusions from correlations.
Chris Brand was a proponent of Arthur Jensen's work on racial intelligence differences. Brand's claims black people are intellectually inferior to whites. He argues the best way to combat IQ disparities is to encourage low-IQ women to reproduce with high-IQ men. He faced intense public backlash, with his work being described as a promotion of eugenics. Brand's book was withdrawn by the publisher and he was dismissed from his position at the University of Edinburgh.
Other prominent modern proponents of scientific racism include Charles Murray and Richard Herrnstein ( The Bell Curve).
Kevin MacDonald, in his Culture of Critique series, used arguments from evolutionary psychology to promote Antisemitism theories that Jews as a group have biologically evolved to be highly ethnocentric and hostile to the interests of white people. He asserts Jewish behavior and culture are central causes of antisemitism, and promotes conspiracy theories about alleged Jewish control and influence in government policy and political movements.
Psychologist Richard Lynn has published multiple papers and a book supporting theories of scientific racism. In IQ and the Wealth of Nations, Lynn claims that national GDP is determined largely by national average IQ.
Nicholas Wade's book ( A Troublesome Inheritance) faced strong backlash from the scientific community, with 142 geneticists and biologists signing a letter describing Wade's work as "misappropriation of research from our field to support arguments about differences among human societies".
On June 17, 2020, Elsevier announced it was retracting an article that J. Philippe Rushton and Donald Templer had published in 2012 in the Elsevier journal Personality and Individual Differences. The article falsely claimed that there was scientific evidence that skin color was related to aggression and sexuality in humans.
The Jena Declaration, published by the German Zoological Society, rejects the idea of human races and distances itself from the racial theories of 20th century scientists. It states that genetic variation between World population is smaller than within them, demonstrating that the biological concept of "races" is invalid. The statement highlights that there are no specific or that match with conventional racial . It also indicates that the idea of "races" is based on racism rather than any Science factuality.
In the United States, an executive order issued March 27, 2025, by the White House characterized an exhibit on African American art at the Smithsonian Institution as divisive, due in part to its presenting race as not being "a biological reality". Scholar Henry Louis Gates Jr., however, had commented a year earlier that although racial categories are indeed culturally constructed, the degree of genetic diversity of each individual on the planet actually unifies humanity in that "we are all mixed".
Clarence Gravlee has written that disparities in the incidence of such medical conditions as diabetes, stroke, cancer, and low birth weight should be viewed with a societal lens. He has argued that social inequalities, not genetic differences between races, are the reason for these differences. Gravlee has also maintained
that genetic differences between different population groups are based on climate and geography, not race, and he calls for replacing incorrect biological explanations of racial disparities with an analysis of the social conditions that lead to disparate medical outcomes. In his book Is Science Racist, Jonathan Marks similarly asserts that races exist, though they lack a natural categorization in the realm of biology. Cultural rules such as the "one-drop rule" must be devised to establish categories of race, even if they go against the natural patterns within our species. According to Marks' writing, racist ideas propagated by scientists are what make science racist.
In her book Medical Apartheid Harriet Washington describes the abuse of Black people in medical research and experimentation. Black people were tricked into participating in medical experiments through the use of unclear language on consent forms and a failure to list the risks and side effects of the treatment. Washington mentions that, because Black people were denied Health equity, they were often desperate for medical help, and medical experimenters were able to exploit that need. Washington also emphasizes that when treatments were perfected and refined as a result of those experiments, Black people almost never benefited from the treatments.Mills, Malcolm. The Journal of African American History, vol. 94, no. 1, The, 2009, pp. 101–103, .
A 2018 statement by the American Society of Human Genetics (ASHG) expressed alarm at the "resurgence of groups rejecting the value of genetic diversity and using discredited or distorted genetic concepts to bolster bogus claims of white supremacy". The ASHG denounced this as a "misuse of genetics to feed racist ideologies", and highlighted several factual errors upon which white supremacist claims have been based. The statement affirms that genetics "demonstrates that humans cannot be divided into biologically distinct subcategories" and that it "exposes the concept of racial purity as scientifically meaningless".
Charles White
Charles White (1728–1813), an English physician and surgeon, believed that races occupied different stations in the "Great Chain of Being", and he tried to scientifically prove that human races had distinct origins from each other. He speculated that whites and Negroes were two different species. White was a believer in polygenism, the idea that different races had been created separately. His Account of the Regular Gradation in Man (1799) provided an empirical basis for this idea. White defended the theory of polygeny by rebutting French naturalist Georges-Louis Leclerc, Comte de Buffon's interfertility argument, which said that only the same species can interbreed. White pointed to species hybrids, such as foxes, wolf, and , which were separate groups that were still able to interbreed. For White, each race was a separate species, divinely created for its own geographical region.
Buffon and Blumenbach
The French naturalist Georges-Louis Leclerc, Comte de Buffon (1707–1788) and the German anatomist Johann Blumenbach (1752–1840) were proponents of monogenism, the concept that all races have a single origin. Buffon and Blumenbach believed a "degeneration theory" of the origins of racial difference. Both asserted that Adam and Eve were white, and that other races came about by degeneration owing to environmental factors, such as climate, disease, and diet. According to this model, Negroid pigmentation arose because of the heat of the tropical sun; that cold wind caused the tawny colour of the Eskimos; and that the Chinese had fairer skins than the Tatars, because the former kept mostly in towns, and were protected from environmental factors. Environmental factors, poverty, and hybridization could make races "degenerate", and differentiate them from the original white race by a process of "raciation". Interestingly, both Buffon and Blumenbach believed that the degeneration could be reversed if proper environmental control was taken, and that all contemporary forms of man could revert to the original white race.
Benjamin Rush
Benjamin Rush (1745–1813), a Founding Father of the United States and a physician, proposed that being black was a hereditary skin condition, which he called "negroidism", and that it could be cured. Rush believed non-whites were actually white underneath, but that they were stricken with a non-contagious form of leprosy, which darkened their skin color. Rush drew the conclusion that "whites should not tyrannize over blacks, for their disease should entitle them to a double portion of humanity. However, by the same token, whites should not intermarry with them, for this would tend to infect posterity with the 'disorder'... attempts must be made to cure the disease".Rush, Benjamin (1799). "Observations Intended to Favour a Supposition That the Black Color (As It Is Called) of the Negroes Is Derived from the Leprosy". Transactions of the American Philosophical Society 4.
Christoph Meiners
Christoph Meiners (1747–1810) was a German polygenist, and believed that each race had a separate origin. Meiners studied the physical, mental, and moral characteristics of each race, and built a race hierarchy based on his findings. Meiners split mankind into two divisions, which he labelled the "beautiful white race" and the "ugly black race". In his book titled The Outline of History of Mankind, Meiners argued that a main characteristic of race is either beauty or ugliness. Meiners thought only the white race to be beautiful, and considered ugly races to be inferior, immoral, and animal-like. Meiners wrote about how the dark, ugly peoples were differentiated from the white, beautiful peoples by their "sad" lack of virtue and their "terrible vices".
Later thinkers
Thomas Jefferson
Thomas Jefferson (1743–1826) was an American politician, scientist, and slave owner. His contributions to scientific racism have been noted by many historians, scientists, and scholars. According to an article published in the McGill Journal of Medicine: "One of the most influential pre-Darwinian racial theorists, Jefferson's call for science to determine the obvious 'inferiority' of African Americans is an extremely important stage in the evolution of scientific racism". Writing for The New York Times, historian Paul Finkelman described how as "a scientist, Jefferson nevertheless speculated that blackness might come 'from the color of the blood,' and concluded that blacks were 'inferior to the whites in the endowments of body and mind'".Paul Finkelman (November 12, 2012). "The Monster of Monticello". The New York Times. In his "Notes on the State of Virginia", Jefferson described black people as follows:Thomas Jefferson, Notes on the State of Virginia
They seem to require less sleep. A black, after hard labor through the day, will be induced by the slightest amusements to sit up till midnight, or later, though knowing he must be out with the first dawn of the morning. They are at least as brave, and more adventuresome. But, this may perhaps proceed from a want of forethought, which prevents their seeing a danger till it be present. When present, they do not go through it with more coolness or steadiness than the whites. They are more ardent after their female: but love seems with them to be more an eager desire, than a tender delicate mixture of sentiment and sensation. Their griefs are transient. Those numberless afflictions, which render it doubtful whether heaven has given life to us in mercy or in wrath, are less felt, and sooner forgotten with them. In general, their existence appears to participate more of sensation than reflection... Comparing them by their faculties of memory, reason, and imagination, it appears to me, that in memory, they are equal to the whites; in reason, much inferior, as I think one black could scarcely be found capable of tracing and comprehending the investigations of Euclid; and that in imagination, they are dull, tasteless, and anomalous... I advance it, therefore, as a suspicion only, that the blacks, whether originally a distinct race, or made distinct by time and circumstances, are inferior to the whites in the endowments both of body and mind.
No body wishes more than I do to see such proofs as you exhibit, that nature has given to our black brethren, talents equal to those of the other colors of men, & that the appearance of a want of them is owing merely to the degraded condition of their existence both in Africa & America. I can add with truth that no body wishes more ardently to see a good system commenced for raising the condition both of their body & mind to what it ought to be, as fast as the imbecility of their present existence, and other circumstance which cannot be neglected, will admit.
Samuel Stanhope Smith
Samuel Stanhope Smith (1751–1819) was an American Presbyterian minister and author of the Essay on the Causes of Variety of Complexion and Figure in the Human Species (1787). Smith claimed that Negro pigmentation was nothing more than a huge freckle that covered the whole body as a result of an oversupply of bile, which was caused by tropical climates.
Georges Cuvier
Racial studies by Georges Cuvier (1769–1832), the French naturalist and zoologist, influenced both scientific polygenism and scientific racism. Cuvier believed there were three distinct races: the Caucasian race (white), Mongoloid (yellow), and the Ethiopian (black). He rated each for the beauty or ugliness of the skull and quality of their civilizations. Cuvier wrote about Caucasians: "The white race, with oval face, straight hair and nose, to which the civilised people of Europe belong, and which appear to us the most beautiful of all, is also superior to others by its genius, courage, and activity".Georges Cuvier, Tableau elementaire de l'histoire naturelle des animaux (Paris, 1798) p. 71
The Negro race ... is marked by black complexion, crisped or woolly hair, compressed cranium, and a flat nose. The projection of the lower parts of the face, and the thick lips, evidently approximate it to the monkey tribe: the hordes of which it consists have always remained in the most complete state of barbarism.
Arthur Schopenhauer
The German philosopher Arthur Schopenhauer (1788–1860) attributed civilizational primacy to the white races, who gained sensitivity and intelligence via the refinement caused by living in the rigorous Northern climate:Schopenhauer, Parerga and Paralipomena: Short Philosophical Essays, Volume II, Section 92
The highest civilization and culture, apart from the ancient Hindus and Egyptians, are found exclusively among the white races; and even with many dark peoples, the ruling caste, or race, is fairer in colour than the rest, and has, therefore, evidently immigrated, for example, the , the Inca Empire, and the rulers of the Polynesia. All this is due to the fact that necessity is the mother of invention, because those tribes that emigrated early to the north, and there gradually became white, had to develop all their intellectual powers, and invent and perfect all the arts in their struggle with need, want, and misery, which, in their many forms, were brought about by the climate. This they had to do to make up for the parsimony of nature, and out of it all came their high civilization.
Racial theories in physical anthropology (1850–1918)
The scientific classification established by Carl Linnaeus is requisite to any human racial classification scheme. In the 19th century, unilineal evolution, or classical social evolution, was a conflation of competing sociologic and anthropologic theories proposing that Western culture was the acme of human socio-cultural evolution. The Christian Bible was interpreted to sanction slavery and from the 1820s to the 1850s was often used in the antebellum Southern United States, by writers such as the Rev. Richard Furman and Thomas R. Cobb, to enforce the idea that Negroes had been created inferior, and thus suited to slavery.
Arthur de Gobineau
The French aristocrat and writer Arthur de Gobineau (1816–1882), is best known for his book An Essay on the Inequality of the Human Races (1853–55) which proposed three human races (black, white and yellow) were natural barriers and claimed that miscegenation would lead to the collapse of culture and civilization. He claimed that "The white race originally possessed the monopoly of beauty, intelligence and strength" and that any positive accomplishments or thinking of blacks and Asians were due to an admixture with whites. His works were praised by many white supremacist American pro-slavery thinkers such as Josiah C. Nott and Henry Hotze.
Carl Vogt
Another polygenist evolutionist was Carl Vogt (1817–1895) who believed that the Negro race was related to the ape. He wrote the white race was a separate species to Negroes. In Chapter VII of his Lectures of Man (1864) he compared the Negro to the white race whom he described as "two extreme human types". The difference between them, he claimed are greater than those between two species of ape; and this proves that Negroes are a separate species from the whites.
Charles Darwin
Charles Darwin's views on race have been a topic of much discussion and debate. According to Jackson and Weidman, Darwin was a moderate in the 19th century debates about race. "He was not a confirmed racist — he was a staunch abolitionist, for example — but he did think that there were distinct races that could be ranked in a hierarchy".
Herbert Hope Risley
As an exponent of "race science", colonial administrator Herbert Hope Risley (1851–1911) used the ratio of the width of a nose to its height to divide Indian people into Aryan and Dravidian races, as well as seven .
Ernst Haeckel
Ernst Haeckel (1834–1919) supported a doctrine of evolutionary polygenism based on the ideas of the linguist and polygenist August Schleicher, in which several different language groups had arisen separately from speechless prehuman Urmenschen (German for 'original humans'), which themselves had evolved from simian ancestors. These separate languages had completed the transition from animals to man, and, under the influence of each main branch of languages, humans had evolved as separate species, which could be subdivided into races. Haeckel divided human beings into ten races, of which the Caucasian was the highest and the primitives were doomed to extinction. Haeckel was also an advocate of the out of Asia theory by writing that the origin of humanity was to be found in Asia; he believed that Hindustan (South Asia) was the actual location where the first humans had evolved. Haeckel argued that humans were closely related to the primates of Southeast Asia and rejected Darwin's hypothesis of Africa.
Craniometry and physical anthropology
The Dutch scholar Pieter Camper (1722–89), an early craniometric theoretician, used "craniometry" (interior skull-volume measurement) to scientifically justify racial differences. In 1770, he conceived of the facial angle to measure intelligence among species of men. The facial angle was formed by drawing two lines: a horizontal line from nostril to ear; and a vertical line from the upper-jawbone prominence to the forehead prominence. Camper's craniometry reported that antique statues (the Greco-Roman ideal) had a 90-degree facial angle, whites an 80-degree angle, blacks a 70-degree angle, and the orangutan a 58-degree facial angle—thus he established a racist biological hierarchy for mankind, per the decadence conception of history. Such scientific racist researches were continued by the naturalist Étienne Geoffroy Saint-Hilaire (1772–1844) and the anthropologist Paul Broca (1824–1880).
Samuel George Morton
In the 19th century, an early American physical anthropologist, physician and polygenist Samuel George Morton (1799–1851), collected human skulls from worldwide, and attempted a logical classification scheme. Influenced by contemporary racialist theory, Dr Morton said he could judge racial intellectual capacity by measuring the interior cranial capacity, hence a large skull denoted a large brain, thus high Intellectualism capacity. Conversely, a small skull denoted a small brain, thus low intellectual capacity; superior and inferior established. After inspecting three mummies from ancient Egyptian catacombs, Morton concluded that Caucasians and Negroes were already distinct three thousand years ago. Since interpretations of the bible indicated that Noah's Ark had washed up on Mount Ararat only a thousand years earlier, Morton claimed that Noah's sons could not possibly account for every race on earth. According to Morton's theory of polygenesis, races have been separate since the start.David Hurst Thomas, Skull Wars: Kennewick Man, Archaeology, And The Battle For Native American Identity, 2001, pp. 38–41
Nicolás Palacios
After the War of the Pacific (1879–83) there was a rise of racial and national superiority ideas among the Chilean ruling class.Ericka Beckman Imperial Impersonations: Chilean Racism and the War of the Pacific, University of Illinois at Urbana-Champaign In his 1918 book physician Nicolás Palacios argued for the existence of Chilean people race and its superiority when compared to neighboring peoples. He thought Chileans were a mix of two : the indigenous and the of Spain, who descended ultimately from Götaland in Sweden. Palacios argued on medical grounds against immigration to Chile from southern Europe claiming that who are of south European stock lack "cerebral control" and are a social burden.
Monogenism and polygenism
Samuel Morton's followers, especially Dr Josiah C. Nott (1804–1873) and George Gliddon (1809–1857), extended Dr Morton's ideas in Types of Mankind (1854), claiming that Morton's findings supported the notion of polygenism (mankind has discrete genetic ancestries; the races are evolutionarily unrelated), which is a predecessor of the modern human multiregional origin hypothesis. Moreover, Morton himself had been reluctant to espouse polygenism, because it Theology challenged the Christian creation myth espoused in the Bible.
Typologies
One of the first typologies used to classify various human races was invented by Georges Vacher de Lapouge (1854–1936), a theoretician of eugenics, who published in 1899 L'Aryen et son rôle social ("The Aryan and his social role"). In this book, he classified humanity into various, hierarchized races, spanning from the "Aryan white race, dolichocephalic", to the "brachycephalic", "mediocre and inert" race, best represented by Southern European, Catholic peasants". Between these, Vacher de Lapouge identified the " Nordic theory" (Teutonic, Protestant, etc.), the " Homo alpinus" (Auvergnat, Turkish people, etc.), and finally the " Homo mediterraneus" (Naples, Andalusia, etc.) Jews were dolichocephalic like the Aryans, according to Lapouge, but exactly for this reason he considered them to be dangerous; they were the only group, he thought, threatening to displace the Aryan aristocracy. Vacher de Lapouge became one of the leading inspirators of Nazi antisemitism and Nazi racist ideology.See Pierre-André Taguieff, La couleur et le sang – Doctrines racistes à la française ("Colour and Blood – Racist doctrines à la française"), Paris, Mille et une nuits, 2002, 203 pages, and La Force du préjugé – Essai sur le racisme et ses doubles, Tel Gallimard, La Découverte, 1987, 644 pages
Ideological applications
Nordicism
Joseph Deniker's contribution to racist theory was La Race nordique (the Nordic race), a generic, racial-stock descriptor, which the American eugenics Madison Grant (1865–1937) presented as the white racial engine of world civilization. Having adopted Ripley's three-race European populace model, but disliking the Teuton race name, he transliterated la race nordique into 'the Nordic race', the acme of the concocted racial hierarchy, based upon his racial classification theory, popular in the 1910s and 1920s.
Justification of slavery in the United States
In the United States, scientific racism justified Black African slavery to assuage moral opposition to the Atlantic slave trade. In 1972, Alexander Thomas and Samuell Sillen documented how blacks' supposed "primitive mentality"
was used to justify black men as uniquely fitted for bondage.Alexander Thomas and Samuell Sillen (1972). Racism and Psychiatry. New York: Carol Publishing Group. In 1851, in antebellum Louisiana, the physician Samuel A. Cartwright (1793–1863) wrote of slave escape attempts as "drapetomania", a treatable mental illness, that "with proper medical advice, strictly followed, this troublesome practice that many Negroes have of running away can be almost entirely prevented". The term drapetomania (mania of the runaway slave) derives from the Greek δραπέτης (drapetes, 'a runaway slave') and μανία (mania, 'madness, frenzy').Samual A. Cartwright, "Diseases and Peculiarities of the Negro Race", DeBow's Review – Southern and Western States, Volume XI, New Orleans, 1851 Cartwright also described dysaesthesia aethiopica, called "rascality" by overseers. The 1840 United States census claimed that Northern, free blacks suffered mental illness at higher rates than did their Southern, enslaved counterparts. Though the census was later found to have been severely flawed by the American Statistical Association, it became a political weapon against abolitionists. Southern slavers concluded that escaping Negroes were suffering from "mental disorders".Higgins, 1994
South African apartheid
Scientific racism played a role in establishing apartheid in South Africa. In South Africa, white scientists, like Dudly Kidd, who published The essential Kafir in 1904, sought to "understand the African mind". They believed that the cultural differences between whites and blacks in South Africa might be caused by physiological differences in the brain. Rather than suggesting that Africans were "overgrown children", as early white explorers had, Kidd believed that Africans were "misgrown with a vengeance". He described Africans as at once "hopelessly deficient", yet "very shrewd".
Eugenics
Stephen Jay Gould described Madison Grant's The Passing of the Great Race (1916) as "the most influential tract of American scientific racism". In the 1920s–30s, the German racial hygiene movement embraced Grant's Nordic theory. Alfred Ploetz (1860–1940) coined the term Rassenhygiene in Racial Hygiene Basics (1895), and founded the German Society for Racial Hygiene in 1905. The movement advocated selective breeding, compulsory sterilization, and a close alignment of public health with eugenics.
Interbellum to World War II
Scientific racism continued through the early 20th century, and soon intelligence testing became a new source for racial comparisons. Before World War II (1939–45), scientific racism remained common to anthropology, and was used as justification for eugenics programs, compulsory sterilization, anti-miscegenation laws, and immigration law in Europe and the United States. The war crimes and crimes against humanity of Nazi Germany (1933–45) discredited scientific racism in academia, but racist legislation based upon it remained in some countries until the late 1960s.
Early intelligence testing and the Immigration Act of 1924
Before the 1920s, social scientists agreed that whites were superior to blacks, but they needed a way to prove this to back social policy in favor of whites. They felt the best way to gauge this was through testing intelligence. By interpreting the tests to show favor to whites these test makers' research results portrayed all minority groups very negatively. In 1908, Henry Goddard translated the Binet intelligence test from French and in 1912 began to apply the test to incoming immigrants on Ellis Island. Some claim that in a study of immigrants Goddard reached the conclusion that 87% of Russians, 83% of Jews, 80% of Hungarians, and 79% of Italians were feeble-minded and had a mental age less than 12. Some have also claimed that this information was taken as "evidence" by lawmakers and thus it affected social policy for years. Bernard Davis has pointed out that, in the first sentence of his paper, Goddard wrote that the subjects of the study were not typical members of their groups but were selected because of their suspected sub-normal intelligence. Davis has further noted that Goddard argued that the low IQs of the test subjects were more likely due to environmental rather than genetic factors, and that Goddard concluded that "we may be confident that their children will be of average intelligence and if rightly brought up will be good citizens". In 1996 the American Psychological Association's Board of Scientific Affairs stated that IQ tests were not discriminatory towards any ethnic/racial groups.
Sweden
Following the creation of the first society for the promotion of racial hygiene, the German Society for Racial Hygiene in 1905—a Swedish society was founded in 1909 as the Svenska sällskapet för rashygien, the third in the world. By lobbying Swedish parliamentarians and medical institutes the society managed to pass a decree creating a government-run institute in the form of the Swedish State Institute for Racial Biology in 1921. By 1922 the institute was built and opened in Uppsala. It was the first such government-funded institute in the world performing research into "racial biology" and remains highly controversial to this day. It was the most prominent institution for the study of "racial science" in Sweden. The goal was to cure criminality, alcoholism and psychiatric problems through research in eugenics and racial hygiene. As a result of the institute's work, a law permitting compulsory sterilization of certain groups was enacted in Sweden in 1934. The second president of the institute Gunnar Dahlberg was highly critical of the validity of the science performed at the institute and reshaped the institute toward a focus on genetics. In 1958 it closed down and all remaining research was moved to the Department of Medical Genetics at Uppsala University.
Nazi Germany
The Nazi Party and its sympathizers published many books on scientific racism, seizing on the eugenics and antisemitism ideas with which they were widely associated, although these ideas had been in circulation since the 19th century. Books such as Rassenkunde des deutschen Volkes ("Racial Science of the German People") by Hans Günther (first published in 1922) and Rasse und Seele ("Race and Soul") by (published under different titles between 1926 and 1934) attempted to scientifically identify differences between the German, Nordic theory, or Aryan people and other, supposedly inferior, groups. German schools used these books as texts during the Nazi era. In the early 1930s, the Nazis used racialized scientific rhetoric based on social Darwinism to push its restrictive and discriminatory social policies.
(1979). 9781412839235, Transaction Publishers. ISBN 9781412839235
United States
In the 20th century, concepts of scientific racism, which sought to prove the physical and mental inadequacy of groups deemed "inferior", was relied upon to justify involuntary sterilization programs.Juliet Hooker, Theorizing Race in the Americas: Douglass, Sarmiento, Du Bois, and Vasconcelos (Oxford University Press, 2017), pp. 9–10. Such programs, promoted by eugenicists such as Harry H. Laughlin, were upheld as constitutional by the U.S. Supreme Court in Buck v. Bell (1927). In all, between 60,000 and 90,000 Americans were subjected to involuntary sterilization.
After 1945
By 1954, 58 years after the Plessy v. Ferguson upholding of racial segregation in the United States, American popular and scholarly opinions of scientific racism and its sociologic practice had evolved.
(1997). 9780312172282, St. Martin's Press. ISBN 9780312172282William H. Tucker, The funding of scientific racism: Wickliffe Draper and the Pioneer Fund, University of Illinois Press, 2002, p. 2. and as lacking a legitimate scholarly purpose. The journal was founded in 1960, partly in response to the Supreme Court decision Brown v. Board of Education which desegregated the American public school system. (2025). 9780814742716, New York University Press. ISBN 9780814742716
Richard Lynn (2025). 027597510X, Praeger. 027597510X He draws this conclusion from the correlation between average IQ and GDP and argues low intelligence in African nations is the cause of their low levels of growth. Lynn's theory has been criticized for attributing causal relationship between correlated statistics. Lynn supports scientific racism more directly in his 2002 paper "Skin Color and Intelligence in African Americans", where he proposes "the level of intelligence in African Americans is significantly determined by the proportion of Caucasian genes". As with IQ and the Wealth of Nations, Lynn's methodology is flawed, and he purports a causal relationship from what is simply correlation.
See also
Bibliography
(1997). 9780900458781, University of Hertfordshire Press. ISBN 9780900458781
(2025). 9781583227763, Seven Stories Press. ISBN 9781583227763
(1994). 9780801847660, Johns Hopkins University Press. ISBN 9780801847660
Further reading
External links
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