Liturgical Documents and Articles
Promulgation of reformed and codified Roman Missal
Pope St. Pius V, 1570
Promulgation of reformed Roman Missal
Pope Clement VIII, 1604
Promulgation of revised Roman Missal
Pope Urban VIII, 1634
On the Reform of the Roman Breviary
Pope St. Pius X, 1911
Towards a Liturgical Reform
(Announcing a general reform and outlining some details)
Pope St. Pius X, 1913 motu proprio
The Holiness of Divine Worship
(On Gregorian Chant and Sacred Music)
Pope Pius XI, 1928
On the Sacred Liturgy
Pope Pius XII, 1947
Articles and Extracts
Reforms of St. Pius X
Some extracts that explain the principal points and motivation of the 1911 Breviary Reform (Divino Afflatu).
Holy Week Reform of Pius XII
To Restore the Liturgical Order of Holy Week―1955 SRC General Decree
These extracts from a 1956 ceremonial explain the reasons, objectives, and pastoral solicitude of the Holy Week Reform.
Two vintage HPR articles (1933 & 1951) that explain the history and symbolism of the Paschal Candle, and its restoration in the reformed Easter Vigil.