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The Little Office of the Immaculate Conception (Latin: Officium parvum Conceptionis Immaculatae) is a devotional office of the Catholic Church, similar in structure to the Divine Office, the Church's official liturgical prayer, though it does not include any Psalms. It was composed towards the end of the 15th Century and long predated the official promulgation of the dogma of the Immaculate Conception of the Blessed Virgin Mary. The Holy See confirmed the Office in 1615.