The ''Index Librorum Prohibitorum'' ("List of Prohibited Books") was a list of publications deemed
heretical or contrary to morality by the
Sacred Congregation of the Index (a former
Dicastery of the
Roman Curia), and
Catholics
The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...
were forbidden to read them.
[Grendler, Paul F. "Printing and censorship" in ''The Cambridge History of Renaissance Philosophy''](_blank)
Charles B. Schmitt, ed. (Cambridge University Press, 1988, ) pp. 45–46
There were attempts to ban heretical books before the sixteenth century, notably in the ninth-century ''Decretum Glasianum''; the ''Index of Prohibited Books'' of 1560 banned thousands of book titles and blacklisted publications, including the works of Europe's intellectual elites. The 20th and final edition of the index appeared in 1948, and the ''Index'' was formally abolished on 14 June 1966 by
Pope Paul VI.
[''The Church in the Modern Age'', (Volume 10) by Hubert Jedin, John Dolan, Gabriel Adriányi 1981 , page 168]
The ''Index'' condemned religious and secular texts alike, grading works by the degree to which they were seen to be repugnant to the church. The aim of the list was to protect church members from reading theologically, culturally, or politically disruptive books. Such books included works by
astronomers, such as the German
Johannes Kepler
Johannes Kepler (; ; 27 December 1571 – 15 November 1630) was a German astronomer, mathematician, astrologer, natural philosopher and writer on music. He is a key figure in the 17th-century Scientific Revolution, best known for his laws ...
's ''
Epitome Astronomiae Copernicanae'' (published in three volumes from 1618 to 1621), which was on the Index from 1621 to 1835, works by
philosophers, such as the
Prussian Immanuel Kant's ''
Critique of Pure Reason'' (1781), and editions and translations of the Bible that had not been approved. Editions of the ''Index'' also contained the rules of the Church relating to the reading, selling, and preemptive censorship of books.
The
canon law of the
Latin Church still recommends that works should be submitted to the judgment of the local
ordinary
Ordinary or The Ordinary often refer to:
Music
* ''Ordinary'' (EP) (2015), by South Korean group Beast
* ''Ordinary'' (Every Little Thing album) (2011)
* "Ordinary" (Two Door Cinema Club song) (2016)
* "Ordinary" (Wayne Brady song) (2008)
* ...
if they concern sacred
Scripture,
theology, canon law, or
church history, religion or morals.
The local ordinary consults someone whom he considers competent to give a judgment and, if that person gives the ''
nihil obstat'' ("nothing forbids"), the local ordinary grants the ''
imprimatur'' ("let it be printed").
Members of religious institutes require the ''
imprimi potest'' ("it can be printed") of their major superior to publish books on matters of religion or morals.
Some of the scientific theories contained in works in early editions of the ''Index'' have long been taught at
Catholic universities. For example, the general prohibition of books advocating
heliocentrism
Heliocentrism (also known as the Heliocentric model) is the astronomical model in which the Earth and planets revolve around the Sun at the center of the universe. Historically, heliocentrism was opposed to geocentrism, which placed the Earth at ...
was removed from the ''Index'' in 1758, but two
Franciscan mathematicians had published an edition of
Isaac Newton's ''
Principia Mathematica'' (1687) in 1742, with commentaries and a preface stating that the work assumed heliocentrism and could not be explained without it. A work of the Italian Catholic priest and philosopher
Antonio Rosmini-Serbati was on the ''Index'', but he was
beatified in 2007. Some have argued that the developments since the abolition of the ''Index'' signify "the loss of relevance of the Index in the 21st century."
J. Martínez de Bujanda's ''Index Librorum Prohibitorum, 1600–1966'' lists the authors and writings in the successive editions of the ''Index'', while Miguel Carvalho Abrantes's ''Why Did The Inquisition Ban Certain Books?: A Case Study from Portugal'' tries to understand why certain books were forbidden based on a Portuguese edition of the ''Index Librorum Prohibitorum'' from 1581.
Background and history
European restrictions on the right to print
The historical context in which the ''Index'' appeared involved the early restrictions on printing in Europe. The refinement of
moveable type and the
printing press by
Johannes Gutenberg
Johannes Gensfleisch zur Laden zum Gutenberg (; – 3 February 1468) was a German inventor and Artisan, craftsman who introduced letterpress printing to Europe with his movable type, movable-type printing press. Though not the first of its ki ...
circa 1440 changed the nature of book publishing, and the mechanism by which information could be disseminated to the public. Books, once rare and kept carefully in a small number of libraries, could be mass-produced and widely disseminated.
In the 16th century, both the churches and governments in most European countries attempted to regulate and control printing because it allowed for rapid and widespread circulation of ideas and information. The
Protestant Reformation generated large quantities of polemical new writing by and within both the Catholic and Protestant camps, and religious subject-matter was typically the area most subject to control. While governments and church encouraged printing in many ways, which allowed the dissemination of
Bibles and government information, works of dissent and criticism could also circulate rapidly. As a consequence, governments established controls over printers across Europe, requiring them to have official licenses to trade and produce books.
The early versions of the ''Index'' began to appear from 1529 to 1571. In the same time frame, in 1557 the
English Crown
This list of kings and reigning queens of the Kingdom of England begins with Alfred the Great, who initially ruled Wessex, one of the seven Anglo-Saxon kingdoms which later made up modern England. Alfred styled himself King of the Anglo-Sax ...
aimed to stem the flow of dissent by chartering the
Stationers' Company. The right to print was restricted to two universities and to the 21 existing printers in the
city of London, which had between them 53
printing presses.
The French crown also tightly controlled printing, and the printer and writer
Etienne Dolet was burned at the stake for atheism in 1546. The 1551
Edict of Châteaubriant
The Edict of Châteaubriant, issued from the seat of Anne, duc de Montmorency in Brittany, was promulgated by Henri II of France, 27 June 1551. The Edict was one of an increasingly severe series of measures taken by Henry II against Protestants, ...
comprehensively summarized censorship positions to date, and included provisions for unpacking and inspecting all books brought into France. The 1557
Edict of Compiègne applied the death penalty to heretics and resulted in the burning of a noblewoman at the stake. Printers were viewed as radical and rebellious, with 800 authors, printers and book dealers being incarcerated in the
Bastille.
At times, the prohibitions of church and state followed each other, e.g.
René Descartes was placed on the Index in the 1660s and the French government prohibited the teaching of
Cartesianism in schools in the 1670s.
[''A companion to Descartes'' by Janet Broughton, John Peter Carriero 2007 page]
The
Copyright Act 1710 in Britain, and later copyright laws in France, eased this situation. Historian Eckhard Höffner claims that copyright laws and their restrictions acted as a barrier to progress in those countries for over a century, since British publishers could print valuable knowledge in limited quantities for the sake of profit. The German economy prospered in the same time frame since there were no restrictions.
Early indices (1529–1571)
The first list of the kind was not published in
Rome, but in Catholic
Netherlands (1529);
Venice
Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 ...
(1543) and
Paris (1551) under the terms of the
Edict of Châteaubriant
The Edict of Châteaubriant, issued from the seat of Anne, duc de Montmorency in Brittany, was promulgated by Henri II of France, 27 June 1551. The Edict was one of an increasingly severe series of measures taken by Henry II against Protestants, ...
followed this example. By mid-century, in the tense atmosphere of wars of religion in Germany and France, both Protestant and Catholic authorities reasoned that only control of the press, including a catalog of prohibited works, coordinated by ecclesiastic and governmental authorities could prevent the spread of heresy.
[Schmitt 1991:45.]
Paul F. Grendler (1975) discusses the religious and political climate in Venice from 1540 – 1605. There were many attempts to censor the Venetian press, which was one of the largest concentrations of printers at that time. Both church and government held to a belief in censorship, but the publishers continually pushed back on the efforts to ban books and shut down printing. More than once the index of banned books in Venice was suppressed or suspended because various people took a stand against it.
The first Roman ''Index'' was printed in 1557 under the direction of
Pope Paul IV (1555–1559), but then withdrawn for unclear reasons.
In 1559, a new index was finally published, banning the entire works of some 550 authors in addition to the individual proscribed titles:
"The Pauline Index felt that the religious convictions of an author contaminated all his writing."
The work of the censors was considered too severe and met with much opposition even in Catholic intellectual circles; after the
Council of Trent had authorised a revised list prepared under
Pope Pius IV
Pope Pius IV ( it, Pio IV; 31 March 1499 – 9 December 1565), born Giovanni Angelo Medici, was head of the Catholic Church and ruler of the Papal States from 25 December 1559 to his death in December 1565. Born in Milan, his family considered ...
, the so-called ''Tridentine Index'' was promulgated in 1564; it remained the basis of all later lists until
Pope Leo XIII, in 1897, published his ''Index Leonianus''.
The
blacklisting
Blacklisting is the action of a group or authority compiling a blacklist (or black list) of people, countries or other entities to be avoided or distrusted as being deemed unacceptable to those making the list. If someone is on a blacklist, t ...
of some Protestant scholars even when writing on subjects a modern reader would consider outside the realm of
dogma meant that, unless they obtained a
dispensation, obedient Catholic thinkers were denied access to works including: botanist
Conrad Gesner's ''
Historiae animalium
''Historia animalium'' ("History of the Animals"), published at Zurich in 1551–1558 and 1587, is an encyclopedic "inventory of renaissance zoology" by Conrad Gessner (1516–1565). Gessner was a medical doctor and professor at the Carolinum i ...
''; the botanical works of
Otto Brunfels; those of the medical scholar
Janus Cornarius; to
Christoph Hegendorff
Christoph Hegendorff (1500 – 8 August 1540), of Leipzig, was a Protestant theological scholar and expert of law, an educator, a Protestant reformer and a great, public admirer of Erasmus, whom he called ''optimarum literarum princeps'' ("the pri ...
or
Johann Oldendorp
Johann Oldendorp (c. 1486Harold J. Berman''Faith and order'' Wm. B. Eerdmans Publishing, 1993, p. 164. – 3 June 1567) was a German jurist and reformer.
Oldendorp was born in Hamburg. He was the son of a merchant and the nephew (on his mother's s ...
on the theory of law; Protestant geographers and cosmographers like
Jacob Ziegler or
Sebastian Münster; as well as anything by Protestant theologians like
Martin Luther,
John Calvin
John Calvin (; frm, Jehan Cauvin; french: link=no, Jean Calvin ; 10 July 150927 May 1564) was a French theologian, pastor and reformer in Geneva during the Protestant Reformation. He was a principal figure in the development of the system ...
or
Philipp Melanchthon
Philip Melanchthon. (born Philipp Schwartzerdt; 16 February 1497 – 19 April 1560) was a German Lutheran reformer, collaborator with Martin Luther, the first systematic theologian of the Protestant Reformation, intellectual leader of the Lu ...
. Among the inclusions was the
Libri Carolini, a theological work from the 9th century court of
Charlemagne, which was published in 1549 by Bishop
Jean du Tillet and which had already been on two other lists of prohibited books before being inserted into the Tridentine Index.
Sacred Congregation of the Index (1571–1917)
In 1571, a special
congregation was created, the Sacred Congregation of the Index, which had the specific task to investigate those writings that were denounced in
Rome as being not exempt of errors, to update the list of Pope Pius IV regularly and also to make lists of required corrections in case a writing was not to be condemned absolutely but only in need of correction; it was then listed with a mitigating clause (e.g., ''donec corrigatur'' (forbidden until corrected) or ''donec expurgetur'' (forbidden until purged)).
Several times a year, the congregation held meetings. During the meetings, they reviewed various works and documented those discussions. In between the meetings was when the works to be discussed were thoroughly examined, and each work was scrutinized by two people. At the meetings, they collectively decided whether or not the works should be included in the Index. Ultimately, the pope was the one who had to approve of works being added or removed from the Index. It was the documentation from the meetings of the congregation that aided the pope in making his decision.
This sometimes resulted in very long lists of corrections, published in the ''Index Expurgatorius'', which was cited by
Thomas James in 1627 as "an invaluable reference work to be used by the curators of the
Bodleian Library
The Bodleian Library () is the main research library of the University of Oxford, and is one of the oldest libraries in Europe. It derives its name from its founder, Sir Thomas Bodley. With over 13 million printed items, it is the second- ...
when listing those works particularly worthy of collecting". Prohibitions made by other congregations (mostly the Holy Office) were simply passed on to the Congregation of the Index, where the final
decrees were drafted and made public, after approval of the
Pope (who always had the possibility to condemn an author personally—there are only a few examples of such condemnation, including those of
Lamennais and
Hermes).
An update to the Index was made by Pope
Leo XIII, in the 1897 apostolic constitution
Officiorum ac Munerum Officiorum ac Munerum was an Apostolic Constitution issued by Pope Leo XIII on 25 January 1897. It was a major revision of the Index Librorum Prohibitorum, a list of books prohibited by the Catholic Church. Along with the 18th century ''Sollicita ...
, known as the "Index Leonianus". Subsequent editions of the Index were more sophisticated; they graded authors according to their supposed degree of toxicity, and they marked specific passages for expurgation rather than condemning entire books.
The
Sacred Congregation of the Inquisition of the Roman Catholic Church later became the
Holy Office, and since 1965 has been called the
Congregation for the Doctrine of the Faith. The Congregation of the Index was merged with the Holy Office in 1917, by the Motu Proprio "Alloquentes Proxime" of Pope Benedict XV; the rules on the reading of books were again reelaborated in the new ''Codex Iuris Canonici''. From 1917 onward, the Holy Office (again) took care of the Index.
Holy Office (1917–1966)
While individual books continued to be forbidden, the last edition of the Index to be published appeared in 1948. This 20th
edition contained 4,000 titles censored for various reasons:
heresy, moral deficiency,
sexual explicitness, and so on. That some
atheist
Atheism, in the broadest sense, is an absence of belief in the existence of deities. Less broadly, atheism is a rejection of the belief that any deities exist. In an even narrower sense, atheism is specifically the position that there no ...
s, such as
Schopenhauer and
Nietzsche, were not included was due to the general (
Tridentine) rule that
heretical works (''i.e.'', works that contradict Catholic dogma) are
ipso facto forbidden. Some important works are absent simply because nobody bothered to denounce them. Many actions of the congregations were of a definite
political content. Among the significant listed works of the period was the Nazi philosopher
Alfred Rosenberg's ''
Myth of the Twentieth Century
''The Myth of the Twentieth Century'' (german: Der Mythus des zwanzigsten Jahrhunderts) is a 1930 book by Alfred Rosenberg, one of the principal ideologues of the Nazi Party and editor of the Nazi paper ''Völkischer Beobachter''. The titular " ...
'' for scorning and rejecting "all dogmas of the Catholic Church, indeed the very fundamentals of the Christian religion".
Abolition (1966)
On 7 December 1965, Pope Paul VI issued the Motu Proprio ''
Integrae servandae
Pope Paul VI's reform of the Roman Curia was accomplished through a series of decrees beginning in 1964, principally through the apostolic constitution ''Regimini Ecclesiae universae'' issued on 15 August 1967.
On 28 October 1965, the bishops at ...
'' that reorganized the Holy Office as the ''Sacred Congregation for the Doctrine of the Faith''. The Index was not listed as being a part of the newly constituted congregation's competence, leading to questioning whether it still was. This question was put to Cardinal
Alfredo Ottaviani, pro-prefect of the congregation, who responded in the negative. The Cardinal also indicated in his response that there was going to be a change in the Index soon.
A June 1966 Congregation for the Doctrine of the Faith
notification announced that, while the ''Index'' maintained its moral force, in that it taught Christians to beware, as required by the natural law itself, of those writings that could endanger faith and morality, it no longer had the force of
ecclesiastical positive law
The canon law of the Catholic Church ("canon law" comes from Latin ') is "how the Church organizes and governs herself". It is the system of laws and ecclesiastical legal principles made and enforced by the hierarchical authorities of the Cathol ...
with the associated penalties.
Scope and impact
Censorship and enforcement
The ''Index'' was not simply a reactive work. Roman Catholic
authors had the opportunity to defend their writings and could prepare a new edition with necessary corrections or deletions, either to avoid or to limit a
ban
Ban, or BAN, may refer to:
Law
* Ban (law), a decree that prohibits something, sometimes a form of censorship, being denied from entering or using the place/item
** Imperial ban (''Reichsacht''), a form of outlawry in the medieval Holy Roman ...
. Pre-publication censorship was encouraged.
The ''Index'' was enforceable within the
Papal States, but elsewhere only if adopted by the civil powers, as happened in several Italian states. Other areas adopted their own lists of forbidden books. In the
Holy Roman Empire book censorship, which preceded publication of the ''Index'', came under control of the Jesuits at the end of the 16th century, but had little effect, since the German princes within the empire set up their own systems.
[ In France it was French officials who decided what books were banned][Lucien Febvre, Henri Jean Martin, ''The Coming of the Book: The Impact of Printing 1450–1800'']
(Verso 1976 ), pp. 245–246 and the Church's ''Index'' was not recognized. Spain had its own ''Index Librorum Prohibitorum et Expurgatorum'', which corresponded largely to the Church's, but also included a list of books that were allowed once the forbidden part (sometimes a single sentence) was removed or "expurgated".
Continued moral obligation
On 14 June 1966, the Congregation for the Doctrine of the Faith responded to inquiries it had received regarding the continued moral obligation concerning books that had been listed in the Index. The response spoke of the books as examples of books dangerous to faith and morals, all of which, not just those once included in the Index, should be avoided regardless of the absence of any written law against them. The Index, it said, retains its moral force "inasmuch as" (''quatenus'') it teaches the conscience of Christians to beware, as required by the natural law itself, of writings that can endanger faith and morals, but it (the Index of Forbidden Books) no longer has the force of ecclesiastical law with the associated censures.
The congregation thus placed on the conscience of the individual Christian the responsibility to avoid all writings dangerous to faith and morals, while at the same time abolishing the previously existing ecclesiastical law and the relative censures, without thereby declaring that the books that had once been listed in the various editions of the Index of Prohibited Books had become free of error and danger.
In a letter of 31 January 1985 to Cardinal Giuseppe Siri, regarding the book ''The Poem of the Man-God
''The Poem of the Man-God'' (Italian title: ''Il Poema dell'Uomo-Dio'') is a multi-volume book of about five thousand pages on the life of Jesus Christ written by Maria Valtorta. The current editions of the book bear the title ''The Gospel as Reve ...
'', Cardinal Joseph Ratzinger (then Prefect of the Congregation, who later became Pope Benedict XVI), referred to the 1966 notification of the Congregation as follows: "After the dissolution of the Index, when some people thought the printing and distribution of the work was permitted, people were reminded again in ''L'Osservatore Romano'' (15 June 1966) that, as was published in the ''Acta Apostolicae Sedis'' (1966), the Index retains its moral force despite its dissolution. A decision against distributing and recommending a work, which has not been condemned lightly, may be reversed, but only after profound changes that neutralize the harm which such a publication could bring forth among the ordinary faithful."
Changing judgments
The content of the Index Librorum Prohibitorum saw deletions as well as additions over the centuries. Writings by Antonio Rosmini-Serbati were placed on the Index in 1849 but were removed by 1855, and Pope John Paul II mentioned Rosmini's work as a significant example of "a process of philosophical enquiry which was enriched by engaging the data of faith". The 1758 edition of the Index removed the general prohibition of works advocating heliocentrism
Heliocentrism (also known as the Heliocentric model) is the astronomical model in which the Earth and planets revolve around the Sun at the center of the universe. Historically, heliocentrism was opposed to geocentrism, which placed the Earth at ...
as a fact rather than a hypothesis.
Listed works and authors
Noteworthy figures on the Index include Simone de Beauvoir
Simone Lucie Ernestine Marie Bertrand de Beauvoir (, ; ; 9 January 1908 – 14 April 1986) was a French existentialist philosopher, writer, social theorist, and feminist activist. Though she did not consider herself a philosopher, and even th ...
, Nicolas Malebranche
Nicolas Malebranche ( , ; 6 August 1638 – 13 October 1715) was a French Oratorian Catholic priest and rationalist philosopher. In his works, he sought to synthesize the thought of St. Augustine and Descartes, in order to demonstrate the ...
, Jean-Paul Sartre, Michel de Montaigne
Michel Eyquem, Sieur de Montaigne ( ; ; 28 February 1533 – 13 September 1592), also known as the Lord of Montaigne, was one of the most significant philosophers of the French Renaissance. He is known for popularizing the essay as a liter ...
, Voltaire, Denis Diderot, Victor Hugo
Victor-Marie Hugo (; 26 February 1802 – 22 May 1885) was a French Romantic writer and politician. During a literary career that spanned more than sixty years, he wrote in a variety of genres and forms. He is considered to be one of the great ...
, Jean-Jacques Rousseau, André Gide, Nikos Kazantzakis, Emanuel Swedenborg, Baruch Spinoza
Baruch (de) Spinoza (born Bento de Espinosa; later as an author and a correspondent ''Benedictus de Spinoza'', anglicized to ''Benedict de Spinoza''; 24 November 1632 – 21 February 1677) was a Dutch philosopher of Portuguese-Jewish origin, b ...
, Desiderius Erasmus, Immanuel Kant, David Hume, René Descartes, Francis Bacon, Thomas Browne
Sir Thomas Browne (; 19 October 160519 October 1682) was an English polymath and author of varied works which reveal his wide learning in diverse fields including science and medicine, religion and the esoteric. His writings display a deep curi ...
, John Milton
John Milton (9 December 1608 – 8 November 1674) was an English poet and intellectual. His 1667 epic poem '' Paradise Lost'', written in blank verse and including over ten chapters, was written in a time of immense religious flux and political ...
, John Locke
John Locke (; 29 August 1632 – 28 October 1704) was an English philosopher and physician, widely regarded as one of the most influential of Age of Enlightenment, Enlightenment thinkers and commonly known as the "father of liberalism ...
, Nicolaus Copernicus, Galileo Galilei, Blaise Pascal
Blaise Pascal ( , , ; ; 19 June 1623 – 19 August 1662) was a French mathematician, physicist, inventor, philosopher, and Catholic Church, Catholic writer.
He was a child prodigy who was educated by his father, a tax collector in Rouen. Pa ...
, and Hugo Grotius
Hugo Grotius (; 10 April 1583 – 28 August 1645), also known as Huig de Groot () and Hugo de Groot (), was a Dutch humanist, diplomat, lawyer, theologian, jurist, poet and playwright.
A teenage intellectual prodigy, he was born in Delft ...
. The first woman to be placed on the list was Magdalena Haymairus in 1569, who was listed for her children's book ''Die sontegliche Episteln über das gantze Jar in gesangsweis gestellt'' (''Sunday Epistles on the whole Year, put into hymns''). Other women include Anne Askew, Olympia Fulvia Morata
Olimpia Fulvia Morata (1526 – 26 October 1555) was an Italian classical scholar.
Biography
She was born in Ferrara to Fulvio Pellegrino Morato and a certain Lucrezia (possibly Gozi).
Her father, who had been tutor to the young princes of the d ...
, Ursula of Munsterberg
Ursula of Munsterberg (german: Ursula von Münsterberg; cs, Uršula z Minstrberka, Voršila Minstrberská, kněžna a Kladská hraběnka; c. 1491/95 or 1499,Cf. Siegismund Justus Ehrhardt: ''Abhandlung vom verderbten Religions-Zustand in Schlesien ...
(1491–1534), Veronica Franco, and Paola Antonia Negri
Paola Antonia Negri, later known as Virginia Negri (1508, Castellanza - 4 April 1555, Milan) was an Italian nun of the Angelic Sisters of St. Paul, of which she was co-founder. She played a dominant role in her community until she was ousted from i ...
(1508–1555).
Contrary to a popular misconception, Charles Darwin's works were never included.
In many cases, an author's ''opera omnia'' (complete works) were forbidden. However, the Index stated that the prohibition of someone's ''opera omnia'' did not preclude works that were not concerned with religion and were not forbidden by the general rules of the Index. This explanation was omitted in the 1929 edition, which was officially interpreted in 1940 as meaning that ''opera omnia'' covered all the author's works without exception.
Cardinal Ottaviani stated in April 1966 that there was too much contemporary literature and the Sacred Congregation for the Doctrine of the Faith could not keep up with it.['' L'Osservatore della Domenica, 24 April 1966, p. 10.]
See also
* List of authors and works on the ''Index Librorum Prohibitorum''
* Archive of the Congregation for the Doctrine of the Faith
* Book censorship
* Clericalism
* Nazi book burnings, some of the books mentioned in the list were burned by the NSDAP
* Index of Repudiated Books
Notes
References
External links
*
Facsimile of the 1559 index
"The first Roman ''Index of Prohibited Books'' (''Index librorum prohibitorum''), published in 1559 under Paul IV, was very severe, and was therefore mitigated under that pontiff by decree of the Holy Office of 14 June of the same year. It was only in 1909 that this ''Moderatio Indicis librorum prohibitorum'' (''Mitigation of the Index of Prohibited Books'') was rediscovered in ''Codex Vaticanus lat. 3958, fol. 74'', and was published for the first time."
The ten "tridentine" rules on the censorship of books (English)
*[https://web.archive.org/web/20080307182801/http://news.monstersandcritics.com/europe/features/article_1070798.php/Vatican_opens_up_secrets_of_Index_of_Forbidden_Books Vatican opens up secrets of Index of Forbidden Books, Dec 22, 2005]
Secrets Behind The Forbidden Books
– ''America
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
'', 7 February 2005
''An index of prohibited books, by command of the present pope, Gregory XVI in 1835; being the latest specimen of the literary policy of the Church of Rome''
Joseph Mendham, London: Duncan and Malcolm, 1840. Also at th
archive.org
* (History and commentary of the index from 1909)
{{Authority control
History of the Catholic Church
Censorship in Christianity
1559 in law
16th-century Catholicism
16th-century Christian texts
Christianity and law in the 16th century
Counter-Reformation
Vatican Library
Book censorship
Canon law history
Lists of prohibited books
Religious controversies in literature
16th-century Latin books