As Walpurga was canonized on 1 May (ca.870), she became associated with May Day, and the eve of May day, traditionally celebrated with dancing, came to be known as "Walpurgisnacht" ("Walpurga's night").
As Walpurga was canonized on 1 May (ca.870), she became associated with May Day, especially in the Finnish and Swedish calendars. The eve of May day, traditionally celebrated with dancing, came to be known as "Walpurgisnacht" ("Walpurga's night").