Counter-Reformation Timeline

The Fifth Council of the Lateran proposed a reform of the calendar, which Copernicus later mentioned in the dedication to De revolutionibus orbium coelestium (1543).

The 1530 Confutatio Augustana was the Catholic response to the Lutheran Augsburg Confession.

Image source: Confutatio Augustana

Pope Paul III is considered the first pope of the Counter-Reformation, and he initiated the Council of Trent, tasked with institutional reform and addressing corrupt bishops and priests, the sale of indulgences, and other financial abuses.

Image source: Pope Paul III

The Council of Trent met sporadically from December 13, 1545, to December 4, 1563, to reform many parts of the Catholic Church. It is frequently dated as the beginning of the Counter-Reformation as a political-historical period.

Image source: Council of Trent

The Index Librorum Prohibitorum was a directory of prohibited books, updated twenty times over four centuries by the Sacred Congregation of the Index. It was finally suspended on March 29, 1967.

Image source: Index Librorum Prohibitorum

The 1566 Roman Catechism, commissioned by the Council of Trent, provided material in Latin to help the clergy catechize in the vernacular, serving as authoritative Church teaching until the Catechism of the Catholic Church (1992).

Image source: Roman Catechism

The Council of Trent recommended that the form of Mass be standardized; this took place in 1570 when Pope Pius V made the Tridentine Mass obligatory. The same Missal mostly prohibited the numerous sequences.

Image source: Tridentine Mass

The 1575 Nova ordinantia ecclesiastica was an addendum to the Liturgia Svecanae Ecclesiae catholicae & orthodoxae conformia, also called the 'Red Book'.

The 1578 Defensio Tridentinae fidei was the Catholic response to the Examination of the Council of Trent.

Image source: Counter-Reformation

An actual new calendar had to wait until the Gregorian calendar in 1582, correcting the Julian calendar that had drifted almost ten days out of step with the seasons.

Image source: Gregorian calendar

Pope Clement VIII received the Ruthenian bishops into full communion on February 7, 1596.

Image source: Union of Brest

The 1713 papal bull Unigenitus condemned 101 propositions of the French Jansenist theologian Pasquier Quesnel (1634–1719).

Image source: Unigenitus

The victory at the Battle of Lepanto in 1571 was accredited to the Virgin Mary and signified the beginning of a strong resurgence of Marian devotions.

Image source: Battle of Lepanto

In the Habsburg hereditary lands, predominantly Protestant except for Tyrol, the Counter-Reformation began with Emperor Rudolf II, who began suppressing Protestant activity in 1576. This conflict escalated into the Bohemian Revolt of 1620.

Image source: Rudolf II, Holy Roman Emperor

The king sent Alexander Farnese as Governor-General of the Spanish Netherlands from 1578 to 1592. He led a successful campaign against the Dutch Revolt, capturing the main cities in the south (the future Belgium) and returning them to Catholic Spain.

Image source: Alexander Farnese, Duke of Parma

By the treaty of Arras in 1579, Farnese secured the support of the 'Malcontents', as the Catholic nobles of the southern Netherlands were styled.

Image source: Union of Arras

The Cologne War (1583–1589) was a conflict between Protestant and Catholic factions that devastated the Electorate of Cologne.

Image source: Cologne War

Antwerp surrendered in 1585 as 60,000 citizens (60 per cent of the pre-siege population) fled north.

Image source: Fall of Antwerp

From 1562 Catholics and Huguenots fought a series of wars in France resulting in millions of deaths, until the Edict of Nantes brought religious peace in 1598.

Image source: Edict of Nantes

The Huguenots' privileges would be lost at the Peace of Alès of 1629, though religious toleration lasted until Louis XIV resumed persecution.

As a political-historical period, the Counter-Reformation is frequently dated to have ended with the political conclusion of the European wars of religion in 1648, though this dating is controversial.

Image source: Peace of Westphalia

The Salzburg Protestants were exiled in the 18th century, especially to Prussia.

Image source: Salzburg Protestants

As heir to the throne, Joseph II spoke vehemently to his mother Maria Theresa in 1777 against the expulsion of Protestants from Moravia, calling her choices 'unjust, impious, impossible, harmful and ridiculous.'

Image source: Joseph II, Holy Roman Emperor

Joseph II's 1781 Patent of Toleration can be regarded as the end of the political Counter-Reformation, although smaller expulsions against Protestants still occurred, such as the Zillertal expulsion.

Image source: Patent of Toleration

Marian piety experienced unforeseen growth during and after the Catholic Reformation, with over 500 pages of mariological writings in the 17th century alone—one of the drivers of the Baroque style that emerged across Europe in the late sixteenth century.

Image source: Baroque

During the Galileo affair, Galileo Galilei was placed under house arrest, served in Rome, Siena, Arcetri, and Florence, for publishing writings said to be 'vehemently suspected of being heretical.' His opponents condemned heliocentric theory and temporarily banned its teaching in 1633.

Image source: Galileo affair

The term was coined in the late eighteenth century by German historians as a negative concept to describe Catholic repressions, and was popularised through the mid-nineteenth century by historians like Leopold von Ranke.

Image source: Counter-Reformation

In nineteenth-century Germany, the term became part of the Kulturkampf: 'Counter-Reformation' was used by Protestant historians as a negative, one-dimensional concept stressing reaction and resistance to Protestantism while neglecting reform within Catholicism.

Image source: Kulturkampf

Even when the Protestant historian Wilhelm Maurenbrecher introduced the term 'Catholic Reformation' in 1880, German historiography remained confessionally divided on the subject.

Image source: Wilhelm Maurenbrecher

In 1966, Archbishop Andreas Rohracher expressed regret about the expulsions of Protestants carried out during the Counter-Reformation.

Image source: Cuius regio, eius religio