1854day.year
In his Apostolic constitution Ineffabilis Deus, Pope Pius IX proclaims the dogmatic definition of Immaculate Conception, which holds that the Blessed Virgin Mary was conceived free of Original Sin.
Pope Pius IX proclaims the dogma of the Immaculate Conception in his Apostolic constitution Ineffabilis Deus in 1854.
On December 8, 1854, Pope Pius IX issued Ineffabilis Deus, formally defining the doctrine of the Immaculate Conception within the Catholic Church. This declaration affirmed that the Virgin Mary had been preserved from original sin from the moment of her conception. The pronouncement followed years of theological debate and reflection among church scholars. It underscored the authority of the papacy to define matters of faith and morals. The dogma was received with widespread acclaim in Catholic communities, while some critics viewed it as an overreach of papal power. The feast of the Immaculate Conception became a major liturgical celebration in both Europe and the Americas. This moment remains a cornerstone in modern Catholic doctrine and Marian devotion.
1854
Apostolic constitution
Ineffabilis Deus
Pope Pius IX
dogmatic definition
Immaculate Conception
Blessed Virgin Mary
Original Sin