the Assumption World consecration to the Immaculate Heart of Mary As a young boy and in later life, Pacelli was an ardent follower of the Virgin Mary. He was consecrated as a bishop on 13 May 1917, the very first day of the apparitions of Our Lady of Fátima. Based on the Portuguese mystic Alexandrina of Balazar requests, he consecrated the world to the Immaculate Heart of Mary in 1942. His remains were to be buried in the crypt of Saint Peter's Basilica on the feast day of Our Lady of Fátima, 13 October 1958. Dogma of the Assumption of Mary On 1 November 1950, Pius XII invoked papal infallibility for the first time since 1854 by defining the dogma of the Assumption of Mary, namely that she "having completed the course of her earthly life, was assumed body and soul into heavenly glory". To date this is the last time full papal infallibility has been used. The dogma was preceded by the 1946 encyclical Deiparae Virginis Mariae, which requested all Catholic bishops to express their opinion on a possible dogmatization. On 8 September 1953, the encyclical Fulgens corona announced a Marian year for 1954, the centennial of the Dogma of the Immaculate Conception. In the encyclical Ad caeli reginam he promulgated the Queenship of Mary feast. Mystici corporis summarizes his mariology. On 15 August 1954, the Feast of the Assumption, he initiated the practice of leading the Angelus every Sunday before address to the crowd assembled at Castel Gandolfo. Social teachings Medical theology Pius XII delivered numerous speeches to medical professionals and researchers. He addressed doctors, nurses, midwives, to detail all aspects of rights and dignity of patients, medical responsibilities, moral implications of psychological illnesses and the uses of psycho pharmaca. He also took on issues like the uses of medicine in terminally ill persons, medical lies in face of grave illness, and the rights of family members to make decisions against expert medical advice. Pope Pius XII often reconsidered previously accepted truth, thus he was first to determine that the use of pain medicine in terminally ill patients is justified, even if this may shorten the life of the patient, as long as life shortening is not the objective itself. Family and sexuality Pope Pius XII developed an extensive theology of the family, taking issue with family roles, sharing of household duties, education of children, conflict resolution, financial