Beltane is mentioned in some of the earliest Irish literature, and it is associated with important events in Irish mythology. It marked the beginning of summer and was when cattle were driven out to the summer pastures. Rituals were performed to protect the cattle, crops and people, and to encourage growth. Special bonfires were kindled, and their flames, smoke and ashes were deemed to have protective powers. The people and their cattle would walk around the bonfire or between two bonfires, and sometimes leap over the flames or embers. All household fires would be doused and then re-lit from the Beltane bonfire. In parts of Ireland, people would make a May Bush: a thorn bush decorated with flowers, ribbons and bright shells. Holy wells were also visited, while Beltane dew was thought to bring beauty and maintain youthfulness. Many of these customs were part of May Day or Midsummer festivals in other parts of Great Britain and Europe.