The Roman Breviary (Latin: Breviarium Romanum) was the official Roman-rite Catholic version of the canonical hours (also called the Divine Office, Work of God, Liturgy of the Hours, or simply the Office or Breviary), a collection of public prayers recited at certain times of the day. It developed gradually in the Middle Ages from various collections of Psalms and prayers, and gradually gained popularity until it was standardised throughout the church by Pope Pius V's edict Quod a nobis (1586). Since then it has undergone many revisions. In 1978 it was significantly revised, and the new version was published under the title Liturgy of the Hours (Latin: Liturgia Horarum).
2337597The Roman BreviaryJohn Patrick Crichton-Stuart1908