Shrove, derived from shrive, refers to the confession of sins as a preparation for Lent, a usual practice in Europe in the Middle Ages. Although the day is sometimes still used for self-examination and introspection, Shrove Tuesday eventually acquired the character of a carnival or festival in many places and is often celebrated with parades. As the final day before the austerity of the Lenten fast, Shrove Tuesday has many customs pertaining to food—in particular, sweet foods containing eggs, sugar, and fat, which were commonly forbidden during Lent and would otherwise go to waste in the six and a half weeks between Ash Wednesday and Easter. Pancakes are the traditional choice in a number of European countries; the day is known as Pancake Day or Pancake Tuesday in Ireland and in many Commonwealth countries.