Liturgy
Solemnity of the Immaculate Conception of the Blessed Virgin Mary
Solemnity · December 8 · Advent
Celebrates the dogma defined by Pope Pius IX in 1854: that Mary was preserved free from original sin in the first moment of her conception.
Body
Celebrated on December 8 (nine months before the Nativity of Mary on September 8). Patronal Feast of the United States of America.
Kind
Solemnity
Season
Advent
Feast day
December 8