Walpurgisnacht or Walpurgis Night is the eve of the Christian feast day of Saint Walpurga, an 8th-century abbess and is celebrated on the night of April 30 and the day of May 1.
Saint Walpurga is revered by Christians for battling rabies and whooping cough. Miracle cures are reported from ailing people who anoint themselves with a fluid known as Walpurga’s oil that drains from a rock at her shrine in Eichstatt, Germany.
Reportedly, she also had the handy power of spinning straw into gold.