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Pope Benedict XVI (left) signs the third encyclical of his pontificate as his Archbishop Harvey (right) looks on.[1]

An encyclical was originally a circular letter sent to all the churches of a particular area in the ancient Roman Church. At that time, the word could be used for a letter sent out by any bishop. The word comes from Late Latin encyclios (from Latin encyclius, a Latinization of Greek enkyklios meaning "circular", "in a circle", or "all-round", also part of the origin of the word encyclopedia).[2]

The term has been used by Catholics, Anglicans and the Eastern Orthodox.

Catholic usage

Although the term "encyclical" originally simply meant a circulating letter, it acquired a more specific meaning within the context of the Catholic Church. In 1740, Pope Benedict XIV wrote a letter titled Ubi primum, which is generally regarded as the first encyclical in a modern sense. The term is now used almost exclusively for a kind of letter sent out by the Pope.

For the modern Roman Catholic Church, a papal encyclical is a specific category of papal document, a kind of pastoral letter concerning Catholic doctrine, sent by the Pope and usually addressed especially to patriarchs, primates, archbishops and bishops who are in communion with the Holy See. The form of the address can vary widely, and may concern bishops in a particular area, or designate a wider audience.[3] Papal encyclicals usually take the form of a papal brief due to their more personal nature as opposed to the formal papal bull. They are usually written in Latin and, like all papal documents, the title of the encyclical is usually taken from its first few words (its incipit).

Papal use of encyclicals

Within Catholicism in recent times, an encyclical is generally used for significant issues and is second in importance only to the highest ranking document now issued by popes, an Apostolic Constitution. However, the designation "encyclical" does not always denote such a degree of significance. The archives at the Vatican website currently classify certain early encyclicals as Apostolic Exhortations, a term generally applied to a type of document with a broader audience than the bishops alone.

Pope Pius XII held that papal encyclicals, even when they are not of ordinary magisterium, can nonetheless be sufficiently authoritative to end theological debate on a particular question:

It is not to be thought that what is set down in Encyclical letters does not demand assent in itself, because in this the popes do not exercise the supreme power of their magisterium. For these matters are taught by the ordinary magisterium, regarding which the following is pertinent: "He who heareth you, heareth Me." (Luke 10:16); and usually what is set forth and inculcated in Encyclical Letters, already pertains to Catholic doctrine. But if the Supreme Pontiffs in their acts, after due consideration, express an opinion on a hitherto controversial matter, it is clear to all that this matter, according to the mind and will of the same Pontiffs, cannot any longer be considered a question of free discussion among theologians.[4]

Encyclicals indicate high papal priority for an issue at a given time. Pontiffs define when, and under which circumstances, encyclicals should be issued. They may choose to issue an apostolic constitution, bull, encyclical, apostolic letter or give a papal speech. Popes have differed on the use of encyclicals: on the issue of birth control and contraception, Pope Pius XI issued the encyclical Casti connubii, while Pope Pius XII gave a speech to midwives and the medical profession, clarifying the position of the church on the issue.[5] Pope Paul VI published an encyclical Humanae vitae on the same topic. On matters of war and peace, Pope Pius XII issued ten encyclicals, mostly after 1945, three of them protesting the Soviet invasion of Hungary in order to crack down on the Hungarian Revolution in 1956: Datis nuperrime, Sertum laetitiae and Luctuosissimi eventus. Pope Paul VI spoke about the war in Vietnam and Pope John Paul II, issued a protest against the war in Iraq using the medium of speeches. On social issues, Pope Leo XIII promulgated Rerum novarum (1891), which was followed by Quadragesimo anno (1931) of Pius XI and Centesimus annus (1991) of John Paul II. Pius XII spoke on the same topic to a consistory of cardinals, in his Christmas messages and to numerous academic and professional associations.[6]

Modern encyclicals by pope

Portrait Pope Term of papacy Number and Ratio Texts
Benoit XIV.jpg
Pope Benedict XIV 1740-1758 48 Encyclicals [1]
Anton Raphael Mengs (1728-1779) - Portret van paus Clemens XIII (1758) - Bologna Pinacoteca Nazionale - 26-04-2012 9-53-03.jpg
Pope Clement XIII 1758-1769 6 Encyclicals
Clement XIV.jpg
Pope Clement XIV 1769-1774 2 Encyclicals
Pompeo Batoni - Ritratto di Papa Pio VI (National Gallery of Ireland).jpg
Pope Pius VI 1775-1799 27 Encyclicals [2]
Sir Thomas Lawrence - Pope Pius VII (1742-1823) - Google Art Project.jpg
Pope Pius VII 1800-1823 4 Encyclicals
Ritratto Papa Leone XII.jpg
Pope Leo XII 1823-1829 2 Encyclicals
Ritratto di Papa Pio VIII, by Clemente Alberi.jpg
Pope Pius VIII 1829-1830 1 Encyclical
Gregory XVI.jpg
Pope Gregory XVI 1831-1846 9 Encyclicals [3]
Portrait pius ix.jpg
Pope Pius IX 1846-1878 38 Encyclicals [4]
Pope Leo XIII 1878-1903 86 Encyclicals [5]
Pope Pius X 1903-1914 17 Encyclicals [6]
Benedictus XV.jpg
Pope Benedict XV 1914-1922 12 Encyclicals [7]
Papst Pius XI. 1JS.jpg
Pope Pius XI 1922-1939 31 Encyclicals [8]
Pius XII with tabard, by Michael Pitcairn, 1951.png
Pope Pius XII 1939-1958 41 Encyclicals [9]
Ioannes XXIII, by De Agostini, 1958-1963.jpg
Pope John XXIII 1958-1963 8 Encyclicals
Paulus VI, by Fotografia Felici, 1969.jpg
Pope Paul VI 1963-1978 7 Encyclicals
Ioannes Paulus I, by Fotografia Felici, 1978 (cropped).jpg
Pope John Paul I 1978-1978 0 Encyclicals
Ioannes Paulus II, in Austria, 1988.jpg
Pope John Paul II 1978-2005 14 Encyclicals
Benedict XVI Blessing-2.jpg
Pope Benedict XVI 2005-2013 3 Encyclicals
Pope Francis Korea Haemi Castle 19.jpg
Pope Francis 2013-present 3 Encyclicals

Anglican usage

Amongst Anglicans the term encyclical was revived in the late 19th century. It is applied to circular letters issued by the English primates.

Important Anglican encyclicals

Important Eastern Orthodox encyclicals


  1. ^ Winfield, Nicole (8 July 2009). "Pope urges new financial order, assistance for poor nations". Archived from the original on 21 July 2009.
  2. ^ Rice, Doyle (16 June 2015). "The papal encyclical: What is an 'encyclical'?". USA Today.
  3. ^ "Encyclical". Encyclopedia Britannica.
  4. ^ Humani generis
  5. ^ Acta Apostolicae Sedis, (AAS) 1951, 835, AAS 1958, 90, AAS 1941, 40, AAS 1952, 258
  6. ^ Allocution to the Cardinals AAS 1946, 141, and, AAS 1952, 5, AAS 1955, 15; and, for example in his Christmas Message 1954, AAS, medical doctors on the use of modern weapons, AAS 1954, 587, farmers, AAS 1950, 251, fashion AAS 1957, 1011, human dignity, AAS 1951, 215, AAS 1957, 830
  7. ^ Simon as, Marlise (3 December 2012). "Orthodox Leader Deepens Progressive Stance on Environment". The New York Times. Retrieved 2017.


  • Acta Apostolicae Sedis, (AAS), Rome and Vatican City State, 1920-2007
  • The Oxford Dictionary of the Christian Church (3rd. ed.), p. 545.

External links

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