Answers are:
1) Martin Luthers Ninety-Five Theses - questioned many tenets of the Catholic Church.
2) Spiritual Exercises - a set of meditation, prayer, and contemplation exercises to strengthen one’s relationship with God. Written by Saint Ignatius of Loyola.
3) Index Librorum Prohibitorum - listed the works which were banned by the church.
4) Malleus Maleficarum - an authoritative treatise on witchcraft. Also called Hammer of Witches.
