Encyclical
Encyclopedia
An encyclical was originally a circular
Flyer (pamphlet)
__notoc__A flyer or flier, also called a circular, handbill or leaflet, is a form of paper advertisement intended for wide distribution and typically posted or distributed in public place....

 letter sent to all the churches of a particular area in the ancient Catholic Church. At that time, the word could be used for a letter sent out by any bishop
Bishop
A bishop is an ordained or consecrated member of the Christian clergy who is generally entrusted with a position of authority and oversight. Within the Catholic Church, Eastern Orthodox, Oriental Orthodox Churches, in the Assyrian Church of the East, in the Independent Catholic Churches, and in the...

. The word comes from Latin
Latin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...

 encyclia (from the Greek
Ancient Greek
Ancient Greek is the stage of the Greek language in the periods spanning the times c. 9th–6th centuries BC, , c. 5th–4th centuries BC , and the c. 3rd century BC – 6th century AD of ancient Greece and the ancient world; being predated in the 2nd millennium BC by Mycenaean Greek...

  en kykloi) meaning "general" or "encircling", which is also the origin of the word "encyclopedia
Encyclopedia
An encyclopedia is a type of reference work, a compendium holding a summary of information from either all branches of knowledge or a particular branch of knowledge....

".

Catholic usage

For the modern Catholic Church a Papal encyclical, in the strictest sense, is a letter, usually treating some aspect of Catholic doctrine, sent by the Pope
Pope
The Pope is the Bishop of Rome, a position that makes him the leader of the worldwide Catholic Church . In the Catholic Church, the Pope is regarded as the successor of Saint Peter, the Apostle...

 and addressed either to the Catholic bishops of a particular area or, more normally, to the bishops of the world; however, the form of the address can vary widely, and often designates a wider audience. Papal encyclicals usually take the form of a Papal brief
Papal brief
The Papal Brief is a formal document emanating from the Pope, in a somewhat simpler and more modern form than a Papal Bull.-History:The introduction of briefs, which occurred at the beginning of the pontificate of Pope Eugenius IV , was clearly prompted for the same desire for greater simplicity...

 due to their more personal nature as opposed to the formal Papal bull
Papal bull
A Papal bull is a particular type of letters patent or charter issued by a Pope of the Catholic Church. It is named after the bulla that was appended to the end in order to authenticate it....

. Papal encyclicals are so famous that the term encyclical is used almost exclusively for those sent out by the Pope. The title of the encyclical is usually taken from its first few words
Opening sentence
At the beginning of a written work stands the opening sentence. Considered "most important", the opening sentence needs to entice the reader and sets the subject, the tone and possibly the style for the whole work, although this does not have to be obvious. David Lodge describes the opening...

 (its incipit
Incipit
Incipit is a Latin word meaning "it begins". The incipit of a text, such as a poem, song, or book, is the first few words of its opening line. In music, it can also refer to the opening notes of a composition. Before the development of titles, texts were often referred to by their incipits...

).

Within Catholicism
Catholicism
Catholicism is a broad term for the body of the Catholic faith, its theologies and doctrines, its liturgical, ethical, spiritual, and behavioral characteristics, as well as a religious people as a whole....

 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
Apostolic constitution
An apostolic constitution is the highest level of decree issued by the Pope. The use of the term constitution comes from Latin constitutio, which referred to any important law issued by the Roman emperor, and is retained in church documents because of the inheritance that the canon law of the...

. However, the designation 'encyclical' does not always denote such a degree of significance. The archives at the Vatican website currently classify certain encyclicals as "Apostolic Exhortations". This informal term generally indicates documents with a broader audience than the bishops alone.

Pope Pius XII
Pope Pius XII
The Venerable Pope Pius XII , born Eugenio Maria Giuseppe Giovanni Pacelli , reigned as Pope, head of the Catholic Church and sovereign of Vatican City State, from 2 March 1939 until his death in 1958....

 held that Papal Encyclicals, even when they are not ex cathedra
Papal infallibility
Papal infallibility is a dogma of the Catholic Church which states that, by action of the Holy Spirit, the Pope is preserved from even the possibility of error when in his official capacity he solemnly declares or promulgates to the universal Church a dogmatic teaching on faith or morals...

, can nonetheless be sufficiently authoritative to end theological debate on a particular question:

Papal use of encyclicals

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
Apostolic constitution
An apostolic constitution is the highest level of decree issued by the Pope. The use of the term constitution comes from Latin constitutio, which referred to any important law issued by the Roman emperor, and is retained in church documents because of the inheritance that the canon law of the...

, bull
Papal bull
A Papal bull is a particular type of letters patent or charter issued by a Pope of the Catholic Church. It is named after the bulla that was appended to the end in order to authenticate it....

, encyclical, apostolic letter or give a papal speech
Speech
Speech is the human faculty of speaking.It may also refer to:* Public speaking, the process of speaking to a group of people* Manner of articulation, how the body parts involved in making speech are manipulated...

. Popes have differed on the use of encyclicals: on the issue of birth control
Birth control
Birth control is an umbrella term for several techniques and methods used to prevent fertilization or to interrupt pregnancy at various stages. Birth control techniques and methods include contraception , contragestion and abortion...

 and contraception
Contraception
Contraception is the prevention of the fusion of gametes during or after sexual activity. The term contraception is a contraction of contra, which means against, and the word conception, meaning fertilization...

, Pope Pius XI
Pope Pius XI
Pope Pius XI , born Ambrogio Damiano Achille Ratti, was Pope from 6 February 1922, and sovereign of Vatican City from its creation as an independent state on 11 February 1929 until his death on 10 February 1939...

 issued the encyclical Casti Connubii
Casti Connubii
Castī Connūbiī was a papal encyclical promulgated by Pope Pius XI on December 31, 1930 in response to the Lambeth Conference of the Anglican church. It stressed the sanctity of marriage, prohibited Catholics from using any form of artificial birth control, and reaffirmed the prohibition on abortion...

, while Pope Pius XII
Pope Pius XII
The Venerable Pope Pius XII , born Eugenio Maria Giuseppe Giovanni Pacelli , reigned as Pope, head of the Catholic Church and sovereign of Vatican City State, from 2 March 1939 until his death in 1958....

 gave a speech to midwives and the medical profession, clarifying the position of the Church on the issue. Pope Paul VI
Pope Paul VI
Paul VI , born Giovanni Battista Enrico Antonio Maria Montini , reigned as Pope of the Catholic Church from 21 June 1963 until his death on 6 August 1978. Succeeding Pope John XXIII, who had convened the Second Vatican Council, he decided to continue it...

 published an encyclical Humanae Vitae
Humanae Vitae
Humanae Vitae is an encyclical written by Pope Paul VI and issued on 25 July 1968. Subtitled On the Regulation of Birth, it re-affirms the traditional teaching of the Catholic Church regarding married love, responsible parenthood, and the continuing proscription of most forms of birth...

 on the same topic. On matters of war
War
War is a state of organized, armed, and often prolonged conflict carried on between states, nations, or other parties typified by extreme aggression, social disruption, and usually high mortality. War should be understood as an actual, intentional and widespread armed conflict between political...

 and peace
Peace
Peace is a state of harmony characterized by the lack of violent conflict. Commonly understood as the absence of hostility, peace also suggests the existence of healthy or newly healed interpersonal or international relationships, prosperity in matters of social or economic welfare, the...

, Pope Pius XII issued ten encyclicals, mostly after 1945, three of them protesting the Soviet invasion of Hungary
Hungary
Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...

 in order to crackdown on the Hungarian Revolution in 1956: Datis Nuperrime
Datis Nuperrime
Datis Nuperrime , is an Papal encyclical of Pope Pius XII concerning the Soviet invasion of Hungary to suppress the Hungarian revolution of 1956. This is a second encyclical protesting the bloody oppression of the Hungarian people...

, Sertum Laetitiae
Sertum Laetitiae
Sertum laetitiae was an encyclical from Pope Pius XII to the Catholic Church of the United States of America in memory of the 150th anniversary of the installation of the first American bishop....

, Luctuosissimi Eventus
Luctuosissimi Eventus
Luctuosissimi Eventus, issued October 28, 1956, is an encyclical of Pope Pius XII urging public prayers for peace and freedom for the people of Hungary....

. Pope Paul VI
Pope Paul VI
Paul VI , born Giovanni Battista Enrico Antonio Maria Montini , reigned as Pope of the Catholic Church from 21 June 1963 until his death on 6 August 1978. Succeeding Pope John XXIII, who had convened the Second Vatican Council, he decided to continue it...

 spoke about the war in Vietnam
Vietnam
Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

 and Pope John Paul II
Pope John Paul II
Blessed Pope John Paul II , born Karol Józef Wojtyła , reigned as Pope of the Catholic Church and Sovereign of Vatican City from 16 October 1978 until his death on 2 April 2005, at of age. His was the second-longest documented pontificate, which lasted ; only Pope Pius IX ...

, issued a protest against the war in Iraq
Iraq
Iraq ; officially the Republic of Iraq is a country in Western Asia spanning most of the northwestern end of the Zagros mountain range, the eastern part of the Syrian Desert and the northern part of the Arabian Desert....

 using the medium of speeches. On social issues, Pope Leo XIII
Pope Leo XIII
Pope Leo XIII , born Vincenzo Gioacchino Raffaele Luigi Pecci to an Italian comital family, was the 256th Pope of the Roman Catholic Church, reigning from 1878 to 1903...

 promulgated Rerum Novarum
Rerum Novarum
Rerum Novarum is an encyclical issued by Pope Leo XIII on May 15, 1891. It was an open letter, passed to all Catholic bishops, that addressed the condition of the working classes. The encyclical is entitled: “Rights and Duties of Capital and Labour”...

 (1891), which was followed by the Quadragesimo Anno
Quadragesimo Anno
Quadragesimo Anno is an encyclical written by Pope Pius XI, issued 15 May 1931, 40 years after Leo XIII's Rerum Novarum. Unlike Leo XIII, who addressed the condition of workers, Pius XI discusses the ethical implications of the social and economic order...

 (1931) of Pius XI, and the Centesimus Annus
Centesimus Annus
Centesimus Annus was an encyclical written by Pope John Paul II in 1991, on the hundredth anniversary of Rerum Novarum...

 (1991) of John Paul II. Pius XII spoke on the same topic to a consistory
Consistory
-Antiquity:Originally, the Latin word consistorium meant simply 'sitting together', just as the Greek synedrion ....

 of cardinal
Cardinal (Catholicism)
A cardinal is a senior ecclesiastical official, usually an ordained bishop, and ecclesiastical prince of the Catholic Church. They are collectively known as the College of Cardinals, which as a body elects a new pope. The duties of the cardinals include attending the meetings of the College and...

s, in his Christmas messages and to numerous academic and professional associations.

Important papal encyclicals

  • Pope Eugene IV
    Pope Eugene IV
    Pope Eugene IV , born Gabriele Condulmer, was pope from March 3, 1431, to his death.-Biography:He was born in Venice to a rich merchant family, a Correr on his mother's side. Condulmer entered the Order of Saint Augustine at the monastery of St. George in his native city...

    (1431-1447)
    • Sicut Dudum
      Sicut Dudum
      Sicut Dudum is a papal bull promulgated by Pope Eugene IV in Florence on January 13, 1435, which forbade the enslavement of local natives in the Canary Islands who had converted to Christianity.- Background :...

       1435
  • Pope Benedict XIV
    Pope Benedict XIV
    Pope Benedict XIV , born Prospero Lorenzo Lambertini, was Pope from 17 August 1740 to 3 May 1758.-Life:...

    (1740-1758)
    • Demandatam
      Demandatam
      Demandatam coelitus humilitati nostrae is an encyclical, promulgated by Pope Benedict XIV on December 24, 1743, about the Melkite Greek Catholic Church. It is addressed to the Patriarch of Antioch Cyril VI Tanas and to all Melkite bishops under his jurisdiction, and is generally not considered ex...

       1743
    • Vix Pervenit
      Vix Pervenit
      Vix Pervenit: On Usury and Other Dishonest Profit was an encyclical, promulgated by Pope Benedict XIV on November 1, 1745, which condemned the practice of charging interest on loans as usury. Because the encyclical was addressed to the Bishops of Italy, it is generally not considered ex cathedra...

       1745
    • Ex Quo 1756
  • Pope Blessed Pius IX
    Pope Pius IX
    Blessed Pope Pius IX , born Giovanni Maria Mastai-Ferretti, was the longest-reigning elected Pope in the history of the Catholic Church, serving from 16 June 1846 until his death, a period of nearly 32 years. During his pontificate, he convened the First Vatican Council in 1869, which decreed papal...

    (1846-1878)
    • Quanta Cura
      Quanta Cura
      There is also an earlier encyclical of the same title, issued in 1741 by Pope Benedict XIV, forbidding traffic in alms. -Historical context:The encyclical was prompted by the September Convention of 1864, an agreement between the Kingdom of Italy and the Second French Empire of Napoleon III,...

       1864
  • Pope Leo XIII
    Pope Leo XIII
    Pope Leo XIII , born Vincenzo Gioacchino Raffaele Luigi Pecci to an Italian comital family, was the 256th Pope of the Roman Catholic Church, reigning from 1878 to 1903...

    (1878-1903)
    • Quod Apostolici Muneris
      Quod Apostolici Muneris
      The encyclical Quod Apostolici Muneris is the second encyclical of Pope Leo XIII. It was published on 28 December 1878.The encyclical is an attack on "socialism, communism and nihilism"; it is therefore usually regarded as an attack against Christian socialism...

       1878
    • Aeterni Patris
      Aeterni Patris
      Eighteen months into his pontificate, in August 1879, Pope Leo XIII, formerly Joachim Pecci, cardinal and bishop of Perugia, published the encyclical Aeterni Patris...

       1879
    • Humanum Genus
      Humanum Genus
      Humanum Genus was a papal encyclical promulgated on April 20, 1884, by Pope Leo XIII. Coming in the ascent of the industrial age and Marxism, it posited that the late 19th Century was a dangerous era for Christians, and condemned Freemasonry as well as a number of beliefs and practices allegedly...

       1884
    • Rerum Novarum
      Rerum Novarum
      Rerum Novarum is an encyclical issued by Pope Leo XIII on May 15, 1891. It was an open letter, passed to all Catholic bishops, that addressed the condition of the working classes. The encyclical is entitled: “Rights and Duties of Capital and Labour”...

       1891
    • Providentissimus Deus
      Providentissimus Deus
      Providentissimus Deus, "On the Study of Holy Scripture", was an encyclical issued by Pope Leo XIII on 18 November 1893.In it, he reviewed the history of Bible study from the time of the Church Fathers to the present, spoke against the errors of the Rationalists and "higher critics", and outlined...

       1893
  • Pope Saint Pius X
    Pope Pius X
    Pope Saint Pius X , born Giuseppe Melchiorre Sarto, was the 257th Pope of the Catholic Church, serving from 1903 to 1914. He was the first pope since Pope Pius V to be canonized. Pius X rejected modernist interpretations of Catholic doctrine, promoting traditional devotional practices and orthodox...

    (1903-1914)
    • Vehementer Nos
      Vehementer Nos
      Vehementer Nos was a papal encyclical promulgated by Pope Pius X on February 11, 1906. Occasioned by the French law of 1905 providing for the separation of church and state, it denounced the proposition that the state should be separated from the Church as "a thesis absolutely false, a most...

       1905
    • Pascendi Dominici Gregis
      Pascendi Dominici Gregis
      Pascendi dominici gregis was a Papal encyclical letter promulgated by Pope Pius X on 8 September 1907.The pope condemned Modernism, and a whole range of other principles described as "evolutionary", which allowed change to Roman Catholic dogma...

       1910
  • Pope Benedict XV
    Pope Benedict XV
    Pope Benedict XV , born Giacomo Paolo Giovanni Battista della Chiesa, reigned as Pope from 3 September 1914 to 22 January 1922...

    (1914-1922)
    • Humani Generis Redemptionem
      Humani Generis Redemptionem
      Humani generis redemptionem is a encyclical by Pope Benedict XV given at St. Peter's, Rome, on June 15 , on the Feast of the Sacred Heart of Jesus in the year 1917, in the third of his Pontificate. The encyclical points to an ever increasing number of Christian preachers and an ever decreasing...

       1917
    • Pacem, Dei Munus Pulcherrimum 1920
  • Pope Pius XI
    Pope Pius XI
    Pope Pius XI , born Ambrogio Damiano Achille Ratti, was Pope from 6 February 1922, and sovereign of Vatican City from its creation as an independent state on 11 February 1929 until his death on 10 February 1939...

    (1922-1938)
    • Quas Primas
      Quas Primas
      Quas Primas was an encyclical of Pope Pius XI. Promulgated on December 11, 1925, it introduced the Feast of Christ the King.The encyclical summarizes both the Old Testament and the New Testament teaching on the kingship of Christ...

       1925
    • Iniquis Afflictisque
      Iniquis Afflictisque
      Iniquis Afflictisque is an encyclical of Pope Pius XI promulgated on November 18, 1926, to denounce the persecution of the Catholic Church in Mexico. It was one of three encyclicals concerning Mexico, including Acerba Animi and Firmissimam Constantiamque...

       1926
    • Casti Connubii
      Casti Connubii
      Castī Connūbiī was a papal encyclical promulgated by Pope Pius XI on December 31, 1930 in response to the Lambeth Conference of the Anglican church. It stressed the sanctity of marriage, prohibited Catholics from using any form of artificial birth control, and reaffirmed the prohibition on abortion...

       1930
    • Quadragesimo Anno
      Quadragesimo Anno
      Quadragesimo Anno is an encyclical written by Pope Pius XI, issued 15 May 1931, 40 years after Leo XIII's Rerum Novarum. Unlike Leo XIII, who addressed the condition of workers, Pius XI discusses the ethical implications of the social and economic order...

       1931
    • Acerba animi
      Acerba Animi
      Acerba Anima is an encyclical of Pope Pius XI promulgated on September, 29, 1932, to denounce the continued persecution of the Catholic Church in Mexico. It was the second of three encyclicals concerning persecution Mexico, including Iniquis Afflictisque and Firmissimam Constantiamque...

       1932
    • Dilectissima Nobis
      Dilectissima Nobis
      Dilectissima Nobis: On Oppression Of The Church Of Spain is an encyclical issued by Pope Pius XI on June 3, 1933 in which he decried persecution of the Church in Spain, specifically naming the expropriation of all Church buildings, episcopal residences, parish houses, seminaries and...

       1933
    • Divini Redemptoris
      Divini Redemptoris
      Divini Redemptoris is an anti-communist encyclical issued by Pope Pius XI. It was published on 19 March 1937. In this encyclical, the pope sets out to "expose once more in a brief synthesis the principles of atheistic Communism as they are manifested chiefly in bolshevism"...

       1937
    • Mit brennender Sorge
      Mit Brennender Sorge
      Mit brennender Sorge is a Catholic Church encyclical of Pope Pius XI, published on 10 March 1937 . Written in German, not the usual Latin, it was read from the pulpits of all German Catholic churches on one of the Church's busiest Sundays,...

       1937
  • Pope Pius XII
    Pope Pius XII
    The Venerable Pope Pius XII , born Eugenio Maria Giuseppe Giovanni Pacelli , reigned as Pope, head of the Catholic Church and sovereign of Vatican City State, from 2 March 1939 until his death in 1958....

    (1939-1958)
    • Summi Pontificatus
      Summi Pontificatus
      Summi Pontificatus is an encyclical of Pope Pius XII published on October 20, 1939. The encyclical is subtitled "On the Unity of Human Society." It was the first major encyclical of Pius XII so was seen as setting "a tone" for his papacy. It critiques major errors at the time, such as ideologies...

       1939
    • Sertum Laetitiae
      Sertum Laetitiae
      Sertum laetitiae was an encyclical from Pope Pius XII to the Catholic Church of the United States of America in memory of the 150th anniversary of the installation of the first American bishop....

       1939
    • Mystici Corporis Christi
      Mystici Corporis Christi
      Mystici Corporis Christi is a papal encyclical issued by Pope Pius XII during World War II, on the Church as the Mystical Body of Christ. It is one of the more important encyclicals of Pope Pius XII, because of its topic, the Church, and because its Church concept was fully included in Lumen...

       1943
    • Divino Afflante Spiritu
      Divino Afflante Spiritu
      Divino Afflante Spiritu is an encyclical letter issued by Pope Pius XII on September 30, 1943. It inaugurated the modern period of Roman Catholic Bible studies by permitting the limited use of modern methods of biblical criticism. The Catholic bible scholar Raymond E...

       1943
    • Orientales Omnes
      Orientales Omnes
      Orientales omnes Ecclesiae is an encyclical of Pope Pius XII to the faithful of the Ukrainian Greek Catholic Church. It commemorates the three hundred and fiftieth anniversary of the Union of Brest....

       1945
    • Deiparae Virginis Mariae
      Deiparae Virginis Mariae
      Deiparae Virginis Mariae , is an encyclical of Pope Pius XII to all Catholic bishops on the possibility of defining the Assumption of the Blessed Virgin Mary as a dogma of faith....

       1946
    • Mediator Dei
      Mediator Dei
      Mediator Dei, a papal encyclical was issued by Pope Pius XII in 1947. The encyclical suggests new directions and active participation instead of a merely passive role of the faithful in the liturgy, in liturgical ceremonies and in the life of their parish. The encyclical also emphasizes the...

       1947
    • Provida Mater Ecclesia 1947
    • Auspicia Quaedam
      Auspicia Quaedam
      Auspicia quaedam , is an encyclical of Pope Pius XII on worldwide public prayers to the Virgin Mary for World peace and the solution of the problem of Palestine, given at Rome at St...

       1948
    • In Multiplicibus 1948
    • Redemptoris Nostri 1949
    • Humani Generis
      Humani Generis
      Humani generis is a papal encyclical that Pope Pius XII promulgated on 12 August 1950 "concerning some false opinions threatening to undermine the foundations of Catholic Doctrine"...

       1950
    • Anni Sacri
      Anni Sacri
      Anni Sacri issued on the twelfth anniversary of his coronation, is an encyclical of Pope Pius XII on a program combating atheism.The encyclical states:- Quotations from the encyclical :...

       1950
    • Fulgens Corona
      Fulgens Corona
      Fulgens corona is an encyclical by Pope Pius XII, given at St. Peter's Rome, on 8 September 1953, on the Feast of the Nativity of the Blessed Virgin Mary, the fifteenth year of his Pontificate...

       1950
    • Sempiternus Rex 1951
    • Evangelii Praecones
      Evangelii Praecones
      Evangelii Praecones June 2, 1951) was an encyclical letter of Pope Pius XII about Catholic missions. In it, he described necessary improvements and changes, and the persecution of the Church in some parts of he world. The encyclical was issued in commemoration of the 25th...

       1951
    • Orientales Ecclesia 1952
    • Ad Caeli Reginam
      Ad Caeli Reginam
      Ad caeli reginam is an encyclical of Pope Pius XII, given at Rome, from St. Peter's, on the feast of the Maternity of the Blessed Virgin Mary, the eleventh day of October, 1954, in the sixteenth year of his Pontificate. The encyclical is an important element of the Mariology of Pope Pius XII...

       1954
    • Ad Sinarum Gentem 1954
    • Sacra Virginitas 1954
    • Haurietis Aquas
      Haurietis Aquas
      Haurietis aquas is a landmark encyclical of Pope Pius XII. Written on May 15, 1956, it was attached to the 100th anniversary of the establishment of the feast of the Sacred Heart of Jesus by Pope Pius IX. The title is derived from , a verse which alludes to the abundance of the supernatural graces...

       1956
    • Miranda Prorsus 1957
    • Invicti Athletae
      Invicti Athletae
      Invicti Athletae is an encyclical of Pope Pius XII to the Polish bishops and faithful on the 300th anniversary of the martyrdom of Saint Andrew Bobola.- Background :...

       1957
    • Ad Apostolorum Principis
      Ad Apostolorum Principis
      Ad Apostolorum Principis is an encyclical of Pope Pius XII on Communism and the Church in China It describes systematic persecutions of bishops, priests, religious and faithful and the attempts of the government to establish a patriotic Catholic Church, independent of Rome.-Background:The...

       1958
  • Pope Blessed John XXIII
    Pope John XXIII
    -Papal election:Following the death of Pope Pius XII in 1958, Roncalli was elected Pope, to his great surprise. He had even arrived in the Vatican with a return train ticket to Venice. Many had considered Giovanni Battista Montini, Archbishop of Milan, a possible candidate, but, although archbishop...

    (1958-1963)
    • Ad Petri Cathedram
      Ad Petri Cathedram
      Ad Petri Cathedram was the first encyclical issued by Pope John XXIII on 29 June, 1959. It was promulgated eight months into the pontificate and addresses truth, unity and peace...

       1959
    • Sacerdotii Nostri Primordia
      Sacerdotii Nostri Primordia
      Sacerdotii Nostri Primordia was the second encyclical issued by Pope John XXIII, and was issued on 1 August 1959. It commemorated the 100th anniversary of the death of St. John Vianney, the patron saint of priests....

       1959
    • Grata Recordatio
      Grata Recordatio
      Grata Recordatio was the third encyclical issued by Pope John XXIII, and was issued on 26 September 1959. It urges the use of the Rosary in the month of October following the tradition to do so by Pope Leo XIII.-References:*....

       1959
    • Princeps Pastorum
      Princeps Pastorum
      Princeps Pastorum is the title of an encyclical letter promulgated by Pope John XXIII on November 28, 1959. It is derived from a biblical passage: I Peter 5:4. In its English translation the letter opens with the phrase On the day when "the Prince of the Shepherds" entrusted to Us His lambs and...

       1959
    • Mater et Magistra
      Mater et Magistra
      "Mater et Magistra" is the encyclical written by Pope John XXIII on the topic of "Christianity and Social Progress". It was promulgated on May 15, 1961. The title means "mother and teacher", referring to the role of the church. It describes a necessity to work towards authentic community in order...

       1961
    • Aeterna Dei Sapientia
      Aeterna Dei Sapientia
      Aeterna Dei Sapientia was the sixth encyclical made by Pope John XXIII, and was issued on 11 November 1961. It commemorates the fifteenth centennial of the death of Pope Leo I and calls for Christendom to unite against external movements such as Communism and secularism.-External links:* from the...

       1961
    • Poenitentiam Agere 1962
    • Pacem in Terris
      Pacem in Terris
      Pacem in Terris was a papal encyclical issued by Pope John XXIII on 11 April 1963. It was the last encyclical drafted by John XXIII, who died from cancer two months after its completion ....

       1963
  • Pope Paul VI
    Pope Paul VI
    Paul VI , born Giovanni Battista Enrico Antonio Maria Montini , reigned as Pope of the Catholic Church from 21 June 1963 until his death on 6 August 1978. Succeeding Pope John XXIII, who had convened the Second Vatican Council, he decided to continue it...

    (1963-1978)
    • Ecclesiam Suam
      Ecclesiam Suam
      Ecclesiam Suam is an encyclical of Pope Paul VI on the Catholic Church given at St. Peter's, Rome, on the Feast of the Transfiguration, August 6 , 1964, the second year of his Pontificate. It is considered an important document, which identified the Catholic Church with the Body of Christ...

       1964
    • Mense Maio
      Mense Maio
      Mense Maio is an encyclical of Pope Paul VI from April 29, 1965), which focused on the Virgin Mary, to whom traditionally the month of May is dedicated as the Mother of God. Paul VI writes that Mary is rightly to be regarded as the way by which people are led to Christ. Therefore, the person...

       1965
    • Mysterium Fidei
      Mysterium Fidei (Encyclical)
      Mysterium Fidei is an encyclical letter of Pope Paul VI on the Eucharist, published in September 1965.Mysterium Fidei was issued just as the closing session of the Second Vatican Council was beginning. Written in a stern and troubled tone, its purpose was to counter certain theological movements...

       1965
    • Christi Matri 1966
    • Populorum Progressio
      Populorum Progressio
      Populorum progressio is the encyclical written by Pope Paul VI on the topic of "the development of peoples" and that the economy of the world should serve mankind and not just the few...

       1967
    • Sacerdotalis Caelibatus
      Sacerdotalis Caelibatus
      Sacerdotalis Caelibatus is the name of an encyclical written by Pope Paul VI. It defends the Catholic Church's tradition of priestly celibacy in the West...

       1967
    • Humanae Vitae
      Humanae Vitae
      Humanae Vitae is an encyclical written by Pope Paul VI and issued on 25 July 1968. Subtitled On the Regulation of Birth, it re-affirms the traditional teaching of the Catholic Church regarding married love, responsible parenthood, and the continuing proscription of most forms of birth...

       1968
  • Pope Blessed John Paul II
    Pope John Paul II
    Blessed Pope John Paul II , born Karol Józef Wojtyła , reigned as Pope of the Catholic Church and Sovereign of Vatican City from 16 October 1978 until his death on 2 April 2005, at of age. His was the second-longest documented pontificate, which lasted ; only Pope Pius IX ...

    (1978-2005)
    • Redemptor Hominis
      Redemptor Hominis
      Redemptor Hominis is the name of the first encyclical written by Pope John Paul II. It lays a blueprint for his pontificate in its exploration of contemporary human problems and especially their proposed solutions found in a deeper understanding of the human person...

       1979
    • Dives in Misericordia
      Dives in Misericordia
      Dives in Misericordia is the name of the second encyclical written by Pope John Paul II. It is a deeply theological examination of the role of mercy — both God's mercy, and also the need for human mercy — introducing the biblical parable of the Prodigal Son as a central theme...

       1980
    • Laborem Exercens
      Laborem Exercens
      Laborem Exercens was an encyclical written by Pope John Paul II in 1981, on human work. It is part of a larger body of doctrine known as Catholic social teaching, which traces its origin to another encyclical, Rerum Novarum, issued by Pope Leo XIII in 1891.-External links:*...

       1981
    • Slavorum Apostoli
      Slavorum Apostoli
      Slavorum Apostoli is an encyclical written by the late Pope John Paul II in 1985. In it he talks about two saintly brothers, Saints Cyril and Methodius, and how they preached the gospel to the Slavs.-Table of contents:...

       1985
    • Dominum et Vivificantem
      Dominum et Vivificantem
      Dominum et Vivificantem is the name of the fifth encyclical written by Pope John Paul II. The encyclical was promulgated on May 18, 1986. It is a theological examination of the role of the Holy Spirit as it pertains to the modern world and the church and the use of spiritual prayer to renew one's...

       1986
    • Redemptoris Mater
      Redemptoris Mater
      Redemptoris Mater is the name for certain Roman Catholic seminaries which operate under the auspices of the Neocatechumenal Way and claim as their mission the formation of priests for the "New Evangelization". These seminaries are distributed worldwide, with nearly 1,500 seminarians currently in...

       1987
    • Sollicitudo Rei Socialis
      Sollicitudo Rei Socialis
      Sollicitudo Rei Socialis is an encyclical written by Pope John Paul II on 30 December 1987. Sollicitudo Rei Socialis was written in regard to 'Social Concern' for the 20th anniversary of 'Populorum Progressio'.- External links :*...

       1987
    • Redemptoris Missio
      Redemptoris Missio
      Redemptoris Missio , subtitled On the permanent validity of the Church's missionary mandate, is a Papal encyclical by Pope John Paul II published on December 7, 1990 devoted to the subject of "the urgency of missionary activity" and in which he wished "to invite the Church to renew her missionary...

       1990
    • Centesimus Annus
      Centesimus Annus
      Centesimus Annus was an encyclical written by Pope John Paul II in 1991, on the hundredth anniversary of Rerum Novarum...

       1991
    • Veritatis Splendor
      Veritatis Splendor
      Veritatis Splendor is an encyclical by Pope John Paul II. It expresses the position of the Catholic Church regarding fundamentals of the Church's role in moral teaching. The encyclical is one of the most comprehensive and philosophical teachings of moral theology in the Catholic tradition...

       1993
    • Evangelium Vitae
      Evangelium Vitae
      Evangelium Vitae is the name of the encyclical written by Pope John Paul II which expresses the position of the Catholic Church regarding the value and inviolability of human life...

       1995
    • Ut Unum Sint
      Ut Unum Sint
      Ut Unum Sint is the incipit of an encyclical by Pope John Paul II of May 25, 1995. Encyclicals are referred to by their "incipit" or first few words...

       1995
    • Fides et Ratio
      Fides et Ratio
      Fides et Ratio is an encyclical promulgated by Pope John Paul II on 14 September 1998. It deals primarily with the relationship between faith and reason....

       1998
    • Ecclesia de Eucharistia
      Ecclesia de Eucharistia
      Ecclesia de Eucharistia is a Papal encyclical by Pope John Paul II published on April 17, 2003, the purpose of which is "to rekindle this Eucharistic 'amazement' […], in continuity with the Jubilee heritage which [he has] left to the Church in the Apostolic Letter Novo Millennio Ineunte and its...

       2003
  • Pope Benedict XVI
    Pope Benedict XVI
    Benedict XVI is the 265th and current Pope, by virtue of his office of Bishop of Rome, the Sovereign of the Vatican City State and the leader of the Catholic Church as well as the other 22 sui iuris Eastern Catholic Churches in full communion with the Holy See...

    (2005 to present)
    • Deus Caritas Est
      Deus Caritas Est
      Deus Caritas Est is a 2006 encyclical—the first written by Pope Benedict XVI, in large part derived from writings by his late predecessor, Pope John Paul II. Its subject is love, as seen through a Christian perspective, and God's place within all love...

       2005
    • Spe Salvi
      Spe Salvi
      Spe Salvi is an encyclical letter by Pope Benedict XVI promulgated on November 30, 2007 about the theological virtue of hope. The title comes from St. Paul's letter to the Romans...

       2007
    • Caritas in Veritate
      Caritas in Veritate
      Caritas in Veritate is the third encyclical of Pope Benedict XVI and his first social encyclical. It was signed on June 29, 2009, and was published on July 7, 2009...

       2009

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 Eastern Orthodox encyclicals

  • Encyclical of the Eastern Patriarchs
    Encyclical of the Eastern Patriarchs
    The Encyclical of the Eastern Patriarchs was a letter sent in May, 1848 by the patriarchs of the Orthodox Church in reply to Pope Pius IX's Epistle to the Easterns...

    (1848)
  • Patriarchal encyclical of 1895
  • Patriarchal encyclical of 1920

External links


Source

  • Acta Apostolicae Sedis, (AAS), Roma Vaticano, 1920-2007
  • The Oxford Dictionary of the Christian Church (3rd. ed.), p. 545.
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