The Immaculate Conception, a solemnity celebrated on December 8, is the patronal feast of the United States. In 1854, Pope Pius IX's solemn declaration, Ineffabilis Deus (link al documento que ...

The Immaculate Conception is the belief that Mary was born free from original sin. The Feast of the Immaculate Conception is celebrated by Catholics on 8 December each year.

The Mighty One has done great things for me, and holy is His name. Luke 1:48-49 The doctrine of the Immaculate Conception is one of the most difficult doctrines for non-Catholics to accept.