Nordic folklore is the folklore of Denmark, Norway, Sweden, Iceland and the Faroe Islands. It has common roots with, and has been mutually influenced by, folklore in England, Germany, the Low Countries, the Baltic countries, Finland and Sapmi. Folklore is a concept encompassing expressive traditions of a particular culture or group. The peoples of Scandinavia are heterogenous, as are the oral genres and material culture that has been common in their lands. However, there are some commonalities across Scandinavian folkloric traditions, among them a common ground in elements from Norse mythology as well as Christian conceptions of the world.