In anthropology and geography, a cultural region, cultural sphere, cultural area or culture area refers to a geography with one relatively homogeneous human activity or complex of activities (culture). Such activities are often associated with an ethnolinguistic group and with the territory it inhabits. Specific cultures often do not limit their geographic coverage to the borders of a nation state, or to smaller subdivisions of a state. Cultural "spheres of influence" may also overlap or form concentric structures of macrocultures encompassing smaller local cultures. Different boundaries may also be drawn depending on the particular aspect of interest, such as religion and folklore vs. dress and architecture vs. language. History of concept A culture area is a concept in cultural anthropology in which a geographic region and time sequence (age area) is characterized by substantially uniform environment and culture. The concept of culture areas was originated by museum curators and ethnologists during the late 1800s as means of arranging exhibits. Clark Wissler and Alfred Kroeber further developed the concept on the premise that they represent longstanding cultural divisions. The concept is criticized by some who argue that the basis for classification is arbitrary. But other researchers disagree and the organization of human communities into cultural areas remains a common practice throughout the social sciences. The definition of culture areas is enjoying a resurgence of practical and theoretical interest as social scientists conduct more research on processes of cultural globalization. Types Allen Noble gave a summary of the concept development of cultural regions using the terms "cultural hearth" (no origin of this term given), "cultural core" by Donald W. Meinig for Mormon culture published in 1970 and "source area" by Fred Kniffen (1965) and later Henry Glassie (1968) for house and barn types. Outside of a core area he quoted Meinigs' use of the terms "domain" (a dominant area) and "sphere" (area influenced but not dominant). Cultural boundary A cultural boundary (also cultural border) in ethnology is a geographical boundary between two identifiable ethnic or ethnolinguistic cultures. A language border is necessarily also a cultural border, as language is a significant part of a society's culture), but it can also divide subgroups of the same ethnolinguistic group along more subtle criteria, such as the Brünig-Napf-Reuss line in German-speaking Switzerland, the Weißwurstäquator in Germany or the Grote rivieren boundary between Dutch and Flemish culture. In the history of Europe, the major cultural boundaries