Feast of Immaculate Conception

“Feast of Immaculate Conception.”
The Solemnity of the Immaculate Conception, also called Immaculate Conception Day, celebrates the sinless lifespan and Immaculate Conception of the Blessed Virgin Mary on 8 December, nine months before the feast of the Nativity of Mary, celebrated on 8 September. It is one of the most important Marian feasts in the liturgical calendar of the Roman Catholic Church celebrated worldwide.