Papal Encyclicals
Aeterni Patris
(On the restoration of Christian Philosophy)
Humanae vitae
(On the regulation of Human Births)
Ineffabilis Deus
(On the Immaculate Conception)
Mysterium fidei
(On the Holy Eucharist)
Rerum novarum
(On Capital and Labor)
For the Encyclicals of Pope John Paul II, see "
Writings of John Paul II
."