December 4, 2013 is the 50th anniversary of Sacrosanctum Concilium (Constitution on the Sacred Liturgy), the first document of the Second Vatican Council. To commemorate the anniversary of this most influential liturgical document, this volume collects in one place historical documents leading up to the promulgation of the Constitution as well as post-Conciliar documents which implemented the liturgical reform called for by the Constitution. The book begins with a schema of the history of liturgical reform providing context for the included documents. Each document is preceded with an overview written by renown scholars and theologians.The documents included in this volume are:1. Tra le sollecitundini2. Mystici Corporis Christi3. Mediator Dei4. Sacrosanctum Concilium5. Sacram Liturgiam6. Inter oecumenici7. Tres abhinc annos8. Comme le Prevoit9. Liturgicae Instaurationes10. Varietates Legitimae11. Liturgiam Authenticam12. Ratio Translationis13. Vicesimus Quintus Annus14. Spirtus et Sponsa15. The Church at Prayer: A Holy Temple of the Lord