The concept of folklore in a narrow sense includes cultural relic theory, spiritual culture theory, folk literature theory and traditional culture theory.

The complete answer to this question can be written as a paper on the history of folklore.

Briefly talk about the theory of cultural relics. When WilliamThoms created the concept of folklore in 1846, its scope basically referred to "popular antiquities". 187 1 Edward? Maurette? In his book Primitive Culture, Edward Murnett Tylor claimed that culture is the result of the barbaric past of pan-mankind, and its development can be proved by some "relics"-customs and ideological facts. Taylor is a representative of the classical school of evolution and a pioneer school of cultural anthropology. Later, AndrewLang in the field of folklore inherited Taylor's theory of remains. In the first chapter of Customs and Myths published by 1884, he said: "Folklore collects and compares intangible similar relics of ancient races: superstitions and stories left over.

I won't elaborate on the rest.

The four concepts of folklore mentioned by the landlord are not very rigorous. If you just have a simple understanding, you can borrow an Introduction to Folklore edited by Zhong Jingwen from the library, which is an introductory reading of folklore. If you want to go deeper, I suggest reading Meng Huiying's History of Western Folklore.