A little history of this dogma and liturgical Feast Day in the Christian tradition might be in order. Pope Pious IX, in agreement with the Catholic Church’s first Ecumenical Council, made official a long-held belief that Mary, the mother of Jesus, was conceived in her mother’s womb without the effects of, or in any way presence of, sin or stain of sin. This belief had an up-and-down history of acceptance and rejection throughout its history. Some monasteries and dioceses chose to celebrate this devotion while others actually forbade it. There are writings in the early centuries of the Church which attempt to explain this mystery from various aspects. Is it based in Scripture? In our First Reading for today’s Eucharistic liturgy there are the familiar verses about God’s promise that there would be a blockage between a “woman” and the serpent or symbol of evil. The first woman, Eve, tasted sin, the second woman would not.