Racial hierarchy in the context of "Nuremberg Laws"

Neanderthals (/niˈændərˌtɑːl, neɪ-, -ˌθɑːl/ nee-AN-də(r)-TAHL, nay-, -⁠THAHL; Homo neanderthalensis or sometimes Homo sapiens neanderthalensis) are an extinct group of archaic humans who inhabited Europe and Western and Central Asia during the Middle to Late Pleistocene. Neanderthal extinction occurred roughly 40,000 years ago with the immigration of modern humans (Cro-Magnons), but Neanderthals in Gibraltar may have persisted for thousands of years longer.

The first recognised Neanderthal fossil, Neanderthal 1, was discovered in 1856 in the Neander Valley, Germany. At first, Neanderthal 1 was considered to be one of the lower races in accord with historical race concepts. As more fossils were discovered through the early 20th century, Neanderthals were characterised as a unique species of underdeveloped human, in particular by Marcellin Boule. By the mid-twentieth century, it was believed that human evolution progressed from an ape-like ancestor through a "Neanderthal phase" to modern humans. This gave way to the "Out of Africa" theory in the 1970s. With the sequencing of Neanderthal genetics first in 2010, it was discovered that Neanderthals interbred with modern humans.

Nazism (/ˈnɑːtsiɪzəm, ˈnæt-/ NA(H)T-see-iz-əm), formally named National Socialism (NS; German: Nationalsozialismus, German: [natsi̯oˈnaːlzotsi̯aˌlɪsmʊs] ), is the far-right totalitarian ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in Germany. During Hitler's rise to power, it was frequently called Hitler Fascism and Hitlerism. The term "neo-Nazism" is applied to far-right groups formed after World War II with similar ideology.

Nazism is a form of fascism, with disdain for liberal democracy and the parliamentary system. Its beliefs include support for dictatorship, fervent antisemitism, anti-communism, anti-Slavism, anti-Romani sentiment, scientific racism, anti-Chinese sentiment, white supremacy, Nordicism, social Darwinism, homophobia, ableism, and eugenics. The Nazis' ultranationalism originated in pan-Germanism and the ethno-nationalist Völkisch movement, which had been prominent within German ultranationalism since the late 19th century. Nazism was influenced by the Freikorps paramilitary groups that emerged after Germany's defeat in World War I, from which the party's "cult of violence" came. It subscribed to pseudo-scientific theories of a racial hierarchy, identifying ethnic Germans as part of what the Nazis regarded as a Nordic Aryan master race. Nazism sought to overcome social divisions and create a homogeneous German society based on racial purity. The Nazis aimed to unite all Germans living in historically German territory, gain lands for expansion under the doctrine of Lebensraum, and exclude those deemed either Community Aliens or "inferior" races (Untermenschen).

The planter class was a racial and socioeconomic class which emerged in the Americas during European colonization in the early modern period. Members of the class, most of whom were settlers of European descent, consisted of individuals who owned or were financially connected to plantations, large-scale farms devoted to the production of cash crops in high demand across markets in Europe and America. These plantations were operated by the forced labor of enslaved people and indentured servants and typically existed in subtropical, tropical, and somewhat more temperate climates, where the soil was fertile enough to handle the intensity of plantation agriculture. Cash crops produced on plantations owned by the planter class included tobacco, sugarcane, cotton, indigo, coffee, tea, cocoa, sisal, oil seeds, oil palms, hemp, rubber trees, and fruits. In North America, the planter class formed part of the American gentry.

As European settlers began to colonize the Americas in the 16th and 17th centuries, they quickly realized the economic potential of growing cash crops which were in high demand in Europe. Settlers began to establish plantations, the majority of which were located in the West Indies. Initially, these plantations were operated with the labor of indentured servants from Europe, but they were eventually supplanted by enslaved Africans brought to the Americas via the Atlantic slave trade. Colonial plantations eventually formed a key component of the triangular trade, whereby European goods were brought to Africa and exchanged for slaves, which were brought to the Americas to be sold to colonists, who used them to produce cash crops which were shipped back to Europe; most African slaves brought to the Americas were sold to the planter class, who frequently subjected them to brutal mistreatment.

The German Nazi Party adopted and developed several racial hierarchical categorizations as an important part of its racist ideology (Nazism) in order to justify enslavement, extermination, ethnic persecution and other atrocities against ethnicities which it deemed genetically or culturally inferior. The Aryan race is a pseudoscientific concept that emerged in the late-19th century to describe people who descend from the Proto-Indo-Europeans as a racial grouping and it was accepted by Nazi thinkers. The Nazis considered the putative "Aryan race" a superior "master race" with Germanic peoples as representative of the Nordic race being the best branch, and they considered Jews, mixed-race people, Slavs, Romani, black people, and certain other ethnicities racially inferior subhumans, whose members were only suitable for slave labor and extermination. In these ethnicities, Jews were considered the most inferior. However, the Nazis considered Germanic peoples such as Germans to be significantly mixed between different races, with the East Baltic race being considered inferior by the Nazis, and that their citizens needed to be completely Nordicized after the war. The Nazis also considered some non-Germanic groups such as Sorbs, Northern Italians, and Greeks to be of Germanic and Nordic origin. Some non-Aryan ethnic groups such as the Japanese were considered to be partly superior, while some Indo-Europeans such as Slavs, Romani, and Indo-Aryans were considered inferior.

These beliefs stemmed from a mixture of historical race concepts, 19th-century and early 20th century anthropology, 19th-century and early 20th-century biology, racial biology, white supremacism, notions of Aryan racial superiority, Nordicism, social Darwinism, German nationalism, and antisemitism with the selection of the most extreme parts. They also originated from German military alliance needs. The term Aryan generally originated during the discourses about the use of the term Volk (the people constitute a lineage group whose members share a territory, a language, and a culture). Unlike the German armed forces (Wehrmacht) only used for military conflicts, the Schutzstaffel (SS) was a paramilitary organization directly controlled by the Nazis with absolute compliance with Nazi racial ideology and policies.

The term racial hygiene was used to describe an approach to eugenics in the early 20th century, which found its most extensive implementation in Nazi Germany (Nazi eugenics). It was marked by efforts to avoid miscegenation, analogous to an animal breeder seeking purebred animals. This was often motivated by the pseudoscientific belief in the existence of a racial hierarchy and the related fear that "lower races" would "contaminate" a "higher" one. As with most eugenicists at the time, racial hygienists believed that the lack of eugenics would lead to rapid social degeneration, the decline of civilization by the spread of inferior characteristics.

Like eugenics, racial hygiene was largely discredited and abandoned following World War II.