Promulgated on September 8, 1907, Pascendi Dominici Gregis ("Feeding the Lord's Flock") is a powerful and prophetic encyclical offered by Pope St. Pius X at a critical time in the Catholic Church. In it, the Holy Father diagnoses and details the burgeoning of Modernism in the Church. He goes on to condemn Modernism and prescribe measures to prevent, retard, and extirpate it from the Church. Read in the light of the ecclesiastical chaos that would emerge in the 1960's and flourish in the decades thereafter, it becomes clear that Pope St. Pius X was correct in his concern about (and desire to destroy) the plague of Modernism.