Answer:
Folklore; the traditional beliefs, customs, and stories of a community, passed through the generations by word of mouth. It is a body of culture shared by a group of people. Somewhat a form of art, most popular folklore genres, oral folklore.. this is usually about song, dance and all forms of verbal art, including poetry, riddles, fairy tales, legends, and much more.
Folklore's doesn't have much of a function, it usually validates culture, situating rituals and institutions to those who perform and watch them, there are usually more information about culture and things like Folklore online.