The Immaculate Conception refers to the belief that the Virgin Mary was conceived without original sin. This doctrine teaches that from the moment of her conception, she was preserved by God’s grace, making her pure and free from sin. This belief is significant in the Catholic Church and is celebrated on December 8 each year. This concept is distinct from the Annunciation, which is when the angel Gabriel announced to Mary that she would conceive Jesus. The Immaculate Conception emphasizes Mary’s unique role in salvation history, preparing her to be the mother of Jesus Christ.