0 ENCYCLICAL OF POPE PIUS XII ON RECITING THE ROSARY TO OUR VENERABLE BRETHREN, PATRIARCHS, PRIMATES, ARCHBISHOPS, BISHIOPS, AND OTHER ORDINARIES HAVING PEACE AND COMMUNION WITH THE APOSTOLIC SEE Venerable Brethren, Greetings and Apostolic Benediction. Ever since We were raised, by the design of Divine Providence, to the supreme Chair of Peter, We have never ceased, in the face of approaching evils, to entrust to the most powerful protection of the Mother of God the destiny of the human family, and, to this end, as you know, We have from time to time written letters of exhortation.
Source: Ingruentium Malorum (Vatican.va)