In 1854, Pope Pius IX's solemn declaration, Ineffabilis Deus (link al documento que está en Marian documents), clarified with finality the long-held belief of the Church that Mary was conceived ...

5 "This is the month in which, in the churches and individual homes, the most affectionate and fervent homage of prayers and devotions from the hearts of Christians are raised to Mary. It is also ...