He thinks it stems from Europe's long tradition of festivals, like, dayslong folk festivals and customs in medieval times.
他认为这源于欧洲悠久的节日传统,比如中世纪持续数天的民间节日和习俗。
英语百科
List of folk festivals
(重定向自Folk Festival)
A folk festival celebrates traditional folk crafts and folk music. The following is an incomplete list of folk festivals worldwide. This list generally excludes festivals with only a partial focus on folk music or arts, though these multi-genre festivals may be included in individual subcategories of Category:Folk festivals by country.