An archaeological culture is a recurring assemblage of artifacts from a specific time and place that may constitute the material culture remains of a particular past human society. The connection between the artifacts is based on archaeologists' understanding and interpretation and does not necessarily relate to real groups of humans in the past. The concept of archaeological culture is fundamental to culture-historical archaeology.We find certain types of remains – pots, implements, ornaments, burial rites and house forms – constantly recurring together. Such a complex of associated traits we shall call a 'cultural group' or just a 'culture'. We assume that such a complex is the material expression of what today we would call 'a people'.We find certain types of remains - pots, implements, ornaments, burial rites and house forms - constantly recurring together. Such a complex of associated traits we shall call a 'cultural group' or just a 'culture'. We assume that such a complex is the material expression of what today we would call 'a people'. An archaeological culture is a recurring assemblage of artifacts from a specific time and place that may constitute the material culture remains of a particular past human society. The connection between the artifacts is based on archaeologists' understanding and interpretation and does not necessarily relate to real groups of humans in the past. The concept of archaeological culture is fundamental to culture-historical archaeology. Different cultural groups have material culture items that differ both functionally and aesthetically due to varying cultural and social practices. This notion is observably true on the broadest scales. For example, the equipment associated with the brewing of tea varies greatly across the world. Social relations to material culture often include notions of identity and status. Advocates of culture-historical archaeology use the notion to argue that sets of material culture can be used to trace ancient groups of people that were either self-identifying societies or ethnic groups. The classic definition of this idea comes from Gordon Childe: The concept of an archaeological culture was crucial to linking the typological analysis of archaeological evidence to mechanisms that attempted to explain why they change through time. The key explanations favoured by culture-historians were the diffusion of forms from one group to another or the migration of the peoples themselves. A simplistic example of the process might be that if one pottery-type had handles very similar to those of a neighbouring type but decoration similar to a different neighbour, the idea for the two features might have diffused from the neighbours. Conversely, if one pottery-type suddenly replaces a great diversity of pottery types in an entire region, that might be interpreted as a new group migrating in with this new style. Archaeological cultures were generally equated with separate 'peoples' (ethnic groups or races) leading in some cases to distinct nationalist archaeologies. Most archaeological cultures are named after either the type artifact or type site that defines the culture. For example, cultures may be named after pottery types such as Linear Pottery Culture or Funnelbeaker culture. More frequently, they are named after the site at which the culture was first defined (not necessarily first found) such as the Halstatt culture or Clovis culture. Since the term 'culture' has many different meanings, scholars have also coined a more specific term 'paleo-culture' or paleoculture, as a specific designation for prehistoric cultures. The use of the term 'culture' entered archaeology through 19th-century German ethnography, where the Kultur of tribal groups and rural peasants was distinguished from the Zivilisation of urbanised peoples. In contrast to the broader use of the word that was introduced to English-language anthropology by Edward Burnett Tylor, Kultur was used by German ethnologists to describe the distinctive ways of life of a particular people or Volk, in this sense equivalent to the French civilisation. Works of Kulturgeschichte (culture history) were produced by a number of German scholars, particularly Gustav Klemm, from 1780 onwards, reflecting a growing interest in ethnicity in 19th-century Europe. The first use of 'culture' in an archaeological context was in Christian Thomsen's 1836 work Ledetraad til Nordisk Oldkyndighed (Norwegian: Guide to Northern Antiquity). In the later half of the 19th century archaeologists in Scandinavia and central Europe increasingly made use of the German concept of culture to describe the different groups they distinguished in the archaeological record of particular sites and regions, often alongside and as a synonym of 'civilisation'. It was not until the 20th century and the works of German prehistorian and fervent nationalist Gustaf Kossinna that the idea of archaeological cultures became central to the discipline. Kossinna saw the archaeological record as a mosaic of clearly defined cultures (or Kultur-Gruppen, culture groups) that were strongly associated with race. He was particularly interested in reconstructing the movements of what he saw as the direct prehistoric ancestors of Germans, Slavs, Celts and other major Indo-European ethnic groups in order to trace the Aryan race to its homeland or urheimat.