Mastermind
Modern eugenics has its origins in the 19th century. Ideas, measures and justifications of state and social interventions and influences on reproduction have been known since antiquity. They can already be found in Plato's Politeia, but here they are limited to state selection and education of so-called "guardians" and are not aimed at evaluating their genetic make-up.
In the Renaissance, corresponding lines of thought can be found in the social utopian writings Utopia by Thomas Morus, Nova Atlantis by Francis Bacon and La città del Sole by Tommaso Campanella.
Gobineau
From 1852 to 1854, the French writer Arthur de Gobineau published a four-volume Essai sur l'inégalité des races humaines (Attempt on the Inequality of the Human Races), in which he introduced the concept of miscegenation and adopted the concept of the Aryan, common in linguistics, into the field of racial theories. He postulated a Nordic-Aryan original race and propagated its preservation or restoration through human breeding and selection. He considered the mixing of races to be harmful, which was plausible at the time because, according to a common hypothesis (blending inheritance), heredity was thought to be tied to the blood, in the progressive mixing of which valuable dispositions would be lost through dilution. Gregor Mendel's discovery that the hereditary material does not behave like a liquid, but consists of mutually independent hereditary units, was not acknowledged by experts until 1900 and then established itself as the prevailing doctrine over the course of several decades.
Gobineau's theses met with a wide response in the German translation by Karl Ludwig Schemann, gained additional popularity in the nineteenth-century foundations of Houston Stewart Chamberlain, and spread through Cecil Rhodes, the All-German Association, and the program of the Deutschvölkische Partei, founded in 1914, to National Socialism.
Social Darwinist theories of society
Charles Darwin published his book The Origin of Species by Natural Selection (the German translation) in 1859. In it, he described his theory of natural selection of the best-adapted animal and plant species, constantly renewed from generation to generation. This, he argued, was the main driving force of evolution towards new species. In 1871 he published his work The Descent of Man and Sexual Selection. With this, Darwin shared the view, widespread since Malthus, that welfare state measures and natural selection were incompatible.
Herbert Spencer (1820-1903) adopted Darwin's term struggle for life (often translated as "struggle for existence") and coined the term Survival of the Fittest (not "survival of the fittest", but "of those best adapted to changing environmental conditions"), which was often erroneously attributed to Darwin and was already controversial at the time of its emergence.
In his work Bau und Leben des sozialen Körpers (1875-78), Albert Schäffle (1821-1903) sketched a picture of a social order that resembles the anatomy of the human body in all its parts and manifestations. He concluded from this, among other things, the hopelessness of social democracy (book title 1885), which was based on an illusory principle of equality and image of man.
The basic idea of Social Darwinist social theories was that the natural selection of the most suitable for survival would be hindered by medicine and social welfare aimed at indiscriminate life support. Proponents of this assumption claimed that social policies interfering with "natural selection" would lead to "counter-selection" and thus to a gradual weakening of public health. One of the masterminds of eugenics was the zoologist Ernst Haeckel (1834-1919). He was of the opinion that "the history of peoples [...] can largely be explained by natural breeding, but that there is also artificial breeding". As an example he cites the Spartans, who killed weak, sick or malformed newborns: "Certainly the people of Sparta owe their rare degree of manly strength and rugged heroism largely to this artificial selection or breeding." This comparison would later be taken up by the racial hygienists and also by Hitler.
In 1899, the philosopher Heinrich Rickert (1863-1936) coined the term biologism for this, which he critically distinguished from biology as a politicizing ideology (Kulturwissenschaft und Naturwissenschaft 1899; Der Biologismus und die Biologie als Naturwissenschaft 1911).
Eugenics in the Labour Movement
Eugenic tendencies also found their way into the workers' movement. According to Reinhard Mocek, the early workers movement tried to reassure itself of its goals in a social-philosophical and at the same time biologistic way. In this sense there was a "proletarian biologism" or a "proletarian liberation biology". Early approaches oriented towards phrenomesmerism, Franz Anton Mesmer and Franz Joseph Gall had been replaced by neo-Lamarckism in August Bebel's time. With Karl Kautsky, a "Copernican turn" in the discussion in the workers' movement had become apparent. Bourgeois thought had gained increasing influence; the restoration of the natural rights of human beings had now been replaced by the reorganization of human existence. The fact that Kautsky dared to address questions such as degeneracy and overpopulation contributed to the emergence of a reformist social policy.
A number of members of the British Fabian Society were also eugenicists. The so-called Minority Report by Beatrice Webb and Sidney Webb, 1st Baron Passfield was, among other things, the basis of the first programme of the Labour Party and eugenically influenced. This was also true of key figures who shaped both the British and Swedish welfare states, such as Richard Titmuss and Gunnar Myrdal.