In 1955, Pope Pius XII made several changes to the General Roman Calendar of 1954; those changes remained in force until 1960, when Pope John XXIII decreed a new revision of the General Roman Calendar (see General Roman Calendar of 1960). The changes made by Pope Pius XII thus remained unaltered for only five years.
Pius XII made those changes by the decree "Cum nostra hac aetate" of 23 March 1955.[1]
The General Calendar of Pope Pius XII is not authorized for liturgical use by traditional groups in communion with the Holy See, and most sedevacantists prefer to use the General Roman Calendar of 1954,[2][3][4][5] as well as Old Roman Catholics, as their members consider it to be the last calendar untainted by the revisions that began in 1955. However, a few sedevacantists do observe the revisions beginning in 1955, while excluding those of the John XXIII, such as the Congregation of Mary Immaculate Queen.[6][7] The celebrations including the revisions according to General Roman Calendar of Pope Pius XII starting in 1955 are listed here below.[8][9]
- ^ Acta Apostolicae Sedis 47(1955), pages 218-224
- ^ Pre-Vatican II Liturgical Changes : Road to the New Mass by Most Rev. Daniel L. Dolan, The Roman Catholic, June 1983
- ^ Liturgical Revolution by Rev. Francesco Ricossa, The Roman Catholic, February–April 1987
- ^ Is Rejecting the Pius XII Liturgical Reforms Illegal? by Rev. Anthony Cekada, 27 April 2006
- ^ More on the Legal Issue by Rev. Anthony Cekada, 10 July 2006
- ^ The Liturgical Changes of Pope Pius XII : May a Catholic Reject Laws Promulgated by a Legitimate Pope?, by Rev. Fr. Dominic Radecki, The Reign of Mary, Issue No. 161
- ^ Statement of Principle : CMRI and the Liturgy of Pope Pius XII (including the revised Holy Week), Mount Saint Michael
- ^ Sacred Heart of Jesus Church
- ^ Chapel of the Most Holy Trinity