“Walpurgis Night (Walpurgisnacht) is a traditional spring festival on 30 April or 1 May in large parts of Central and Northern Europe. It is often celebrated with dancing and with bonfires. The current festival is, in most countries that celebrate it, named after the English missionary Saint Walburga (ca. 710–777/9). As Walburga was canonized on 1st of 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”). The name of the holiday is Walpurgisnacht in German and Dutch, Valborgsmässoafton in Swedish, Vappu in Finnish, Volbriöö, (Walpurgi öö) in Estonian, Valpurgijos naktis in Lithuanian, Valpurģu nakts or Valpurģi in Latvian, čarodějnice or Valpuržina noc in Czech, chódotypalenje Lower Sorbian and chodojtypalenje in Upper Sorbian.