In the ancient Church, an encyclical was a circular letter sent to all the churches of a particular area. As used at that time, the word could be used of a letter sent out by any bishop. The word comes from Latin "encyclia" meaning "general" or "encircling", which is also the origin of the word "encyclopedia".

In the modern Roman Catholic Church an encyclical is a letter sent by the Pope to all Roman Catholic bishops, usually a statement of policy or announcing a new initiative. The Orthodox Church and the Anglican Communion retain the older usage.

Important papal encyclicals

• Pope Leo XIII
  • Rerum Novarum (1891)
• Pope Pius X
  • Vehementer nos (1905)
• Pope Benedict XV
• Pope Pius XI
  • Casti Connubii (1930)
  • Quadragesimo Anno (1931)
  • Mit Brennender Sorge (1937)
• Pope Pius XII
  • Humani Generis (1950)
• Pope John XXIII
  • Ad Petri Cathedram (1959)
  • Sacerdotii Nostri Primordia (1959)
  • Grata Recordatio (1959)
  • Princeps Pastorum (1959)
  • Mater et Magistra 1961
  • Aeterna Dei Sapientia (1961)
  • Poenitentiam Agere (1962)
  • Pacem in Terris ( 1963)
• Pope Paul VI
  • Ecclesiam Suam ( 1964)
  • Mense Maio ( 1965)
  • Mysterium Fidei (1965)
  • Christi Matri (1966)
  • Populorum Progressio (1967)
  • Sacerdotalis Caelibatus (1967)
  • Humanae Vitae 1968
• Pope John Paul I
• Pope John Paul II
  • Redemptor Hominis (1979)
  • Dives in Misericordia (1980)
  • Laborem Exercens (1981)
  • Slavorum Apostoli (1985)
  • Dominum et Vivificantem (1986)
  • Redemptoris Mater (1987)
  • Sollicitudo Rei Socialis ( 1987)
  • Redemptoris Missio (1990)
  • Centesimus Annus (1991)
  • Veritatis Splendor (1993)
  • Evangelium Vitae (1995)
  • Ut Unum Sint (1995)
  • Fides et Ratio (1998)
  • Ecclesia de Eucharistia (2003)

Important Eastern Orthodox Encyclicals

• Encyclical of the Eastern Patriarchs (1848)

External link

John Paul II Encyclicals from Vatican (http://www.vatican.va/holy_father/john_paul_ii/encyclicals/index.htm)

Source

The Oxford Dictionary of the Christian Church (3rd. ed.), p. 545