Encyclical of Pope St. Pius X, issued to mark the fiftieth anniversary of the proclamation of the Immaculate Conception as a dogma. Promulgated 2 February, 1904.

Defines the Immaculate Conception infallibly as dogma. Apostolic Constitution issued by Pope Pius IX on 8 December, 1854.

James Akin's explanation of Thomas Aquinas' views on the issue of Mary's sinlessness.

By John Henry Cardinal Newman.

Article by Wade L.J. Menezes, in the November/December 2000 issue of Catholic Faith.

Article by Rev Charles Dickson published in The Catholic Answer.

Article by Father Paul A. Duffner, from the Rosary Center.

Ebooklet pertaining to the virgin conception and birth of Mary.