[1][2][3][4] During the 18th century, scientific thinkers including Georges-Louis Leclerc, Comte de Buffon, Johann Friedrich Blumenbach, and Immanuel Kant argued that humans shared a common origin but had degenerated over time due to differences in climate.
He attacked the premises of Buffon's argument in his 1785 Notes on the State of Virginia, writing that the animals of the New World felt the same sun and walked upon the same soil as their European counterparts.
[7] Blumenbach believed that a multitude of factors, including climate, air, and the strength of the sun, promoted degeneration and resulted in external differences between human beings.
[7] In the essay "Über Menschen-Rassen und Schweine-Rassen", Blumenbach clarified his understanding of the relationship between different human races by calling upon the example of the pig.
[7] Nevertheless, the third edition of De Generis Humani Varietate Nativa, published in 1795, is famed among scholars for its introduction of a system of racial classification which divided humans into members of the Caucasian, Ethiopian, Mongolian, Malayan, or American races.
[5] The concept of degeneration arose during the European enlightenment and the industrial revolution – a period of profound social change and a rapidly shifting sense of personal identity.
The disturbing experience of social change and urban crowds, largely unknown in the agrarian 18th century, was recorded in the journalism of William Cobbett, the novels of Charles Dickens and in the paintings of J. M. W. Turner.
The novel experience of everyday contact with the urban working classes gave rise to a kind of horrified fascination with their perceived reproductive energies which appeared to threaten middle-class culture.
[citation needed] Thirdly, the development of world trade and colonialism, the early European experience of globalization, resulted in an awareness of the varieties of cultural expression and the vulnerabilities of Western civilization.
[citation needed] Fourthly, medical doctors of the time could diagnose fetal alcohol syndrome and congenital syphilis, and not absurdly come to the conclusion that behavioral problems can be inherited by offspring.
Morel's psychiatric theories were taken up and advocated by his friend Philippe Buchez, and through his political influence became an official doctrine in French legal and administrative medicine.
[citation needed] Arthur de Gobineau came from an impoverished family (with a domineering and adulterous mother) which claimed an aristocratic ancestry; he was a failed author of historical romances, and his wife was widely rumored to be a Créole from Martinique.
De Gobineau nevertheless argued that the course of history and civilization was largely determined by ethnic factors, and that interracial marriage ("miscegenation") resulted in social chaos.
De Gobineau built a successful career in the French diplomatic service, living for extended periods in Iran and Brazil, and spent his later years travelling through Europe, lamenting his mistreatment at the hands of his wife and daughters.
Quite different historical factors inspired the Italian Cesare Lombroso in his work on criminal anthropology with the notion of atavistic retrogression, probably shaped by his experiences as a young army doctor in Calabria during the risorgimento.
[citation needed] In Britain, degeneration received a scientific formulation from Ray Lankester whose detailed discussions of the biology of parasitism were hugely influential; the poor physical condition of many British Army recruits for the Second Boer War (1899–1902) led to alarm in government circles.
Anxieties in Britain about the perils of degeneration found legislative expression in the Mental Deficiency Act 1913 which gained strong support from Winston Churchill, then a senior member of the Liberal government.
Degeneration fell from popular and fashionable favor around the time of the First World War, although some of its preoccupations persisted in the writings of the eugenicists and social Darwinists (for example, R. Austin Freeman; Anthony Ludovici; Rolf Gardiner; and see also Dennis Wheatley's Letter to posterity).
For example, there might be an intergenerational development from nervous character to major depressive disorder, to overt psychotic illness and, finally, to severe and chronic cognitive impairment, something akin to dementia.
[20] According to the theory of degeneration, a host of individual and social pathologies in a finite network of diseases, disorders and moral habits could be explained by a biologically based affliction.
In this way, a wide range of social and medical deviations, including crime, violence, alcoholism, prostitution, gambling, and pornography, could be explained by reference to a biological defect within the individual.
The earliest uses of the term degeneration can be found in the writings of Blumenbach and Buffon at the end of the 18th century, when these early writers on natural history considered scientific approaches to the human species.
An alternative view of the multiple origins of different racial groups, called "polygenic theories", was also rejected by Charles Darwin, who favored explanations in terms of differential geographic migrations from a single, probably African, population.
Morel was a highly regarded psychiatrist, the very successful superintendent of the Rouen asylum for almost twenty years and a fastidious recorder of the family histories of his variously disabled patients.
Morel's ideas were greatly extended by the Italian medical scientist Cesare Lombroso (1835–1909) whose work was defended and translated into English by Havelock Ellis.
These included a low, sloping forehead, hard and shifty eyes, large, handle-shaped ears, a flattened or upturned nose, a forward projection of the jaw, irregular teeth, prehensile toes and feet, long simian arms and a scanty beard and baldness.
Adopting some of Charcot's neurological vocabulary, Nordau identified a number of weaknesses in contemporary Western culture which he characterized in terms of ego-mania, i.e., narcissism and hysteria.
Degeneration theory fell from favour around the time of the First World War because of an improved understanding of the mechanisms of genetics as well as the increasing vogue for psychoanalytic thinking.
Towards the close of the 19th century, in the fin-de-siècle period, something of an obsession with decline, descent and degeneration invaded the European creative imagination, partly fuelled by widespread misconceptions of Darwinian evolutionary theory.
[23] Arthur Conan Doyle's Sherlock Holmes stories include a host of degenerationist tropes, perhaps best illustrated (drawing on the ideas of Serge Voronoff) in The Adventure of the Creeping Man.