Promulgated on December 11, 1925, it introduced the Banquet of Christ the Ruler. The encyclical summarizes both the Aged Evidence and the New Evidence teaching on the kingship of Christ. Revoking an previous encyclical Annum Sacrum of Pope Leo XIII, Pius XI connotes so as to the kingdom of Christ embraces the entire mankind.

Part of the encyclical symbolically noticeable that Christ must reign at the present temporally. In its replacing of the feast on the previous Sunday of Pentecost, the later Mass of Paul VI calendar symbolized in opposing the new orientation of the Second Vatican Council in that Christ will reign, although not now amongst nations, but at the end of time.