Premise: Svensk Hyllningsfest (] , "Swedish Honoring Festival") is a biennial celebration held in Lindsborg, Kansas, in October of odd-numbered years since 1941 to celebrate the town's Swedish heritage. The festival includes Swedish dancing, foods including "lutfisk", cooking demonstrations, arts and crafts, entertainment by local artists and musicians, a parade, and a smörgåsbord.
Hypothesis: The Svensk Hyllningsfest  is the oldest celebration that happens in Kansas.