Pope Leo 13, on the 13th day of December 1898, granted the following indulgences: `` An indulgence of three hundred days is granted to all the Faithful who read the Holy Gospels at least a quarter of an hour.

This use of the title is said to have originated in the right conceded to the king of France, by the concordat between Pope Leo X and Francis I ( 1516 ), to appoint abbés commendataires to most of the abbeys in France.

The powerful Mariology of Ambrose of Milan influenced contemporary Popes like Pope Damasus and Siricius and later, Pope Leo the Great.

In 1884, he was created by Pope Leo XIII Archbishop of Caesarea in partibus and sent to India as an Apostolic Delegate to report on the establishment of the hierarchy there.

Pope Leo I requests Genseric not destroy the ancient city or murder its citizens.

In the list of popes given in the Holy See's annual directory, Annuario Pontificio, the following note is attached to the name of Pope Leo VIII ( 963 – 965 ): At this point, as again in the mid-eleventh century, we come across elections in which problems of harmonising historical criteria and those of theology and canon law make it impossible to decide clearly which side possessed the legitimacy whose factual existence guarantees the unbroken lawful succession of the successors of Saint Peter.

In 853, at the age of four, Alfred is said to have been sent to Rome where, according to the Anglo-Saxon Chronicle, he was confirmed by Pope Leo IV who " anointed him as king ".

Algardi's first major commission came about in 1634, when Cardinal Ubaldini ( Medici ) contracted for a funeral monument for his great-uncle, Pope Leo XI, the third of the Medici popes, who had reigned for less than a month in 1605.

Algardi's large dramatic marble high-relief panel of Pope Leo and Attila ( 1646 – 53 ) for St Peter's Basilica was widely admired in his day, and reinvigorated the use of such marble reliefs.

* 1884 – Pope Leo XIII publishes the encyclical Humanum Genus.

** Pope Leo IX

* 1605 – Pope Leo XI ( b. 1535 )

* 1887 – On Easter Sunday, Pope Leo XIII authorizes the establishment of The Catholic University of America.

Pope Leo XIII ( Constitutio Universae Eccles., 29 December 1878 ) ordained that they should be written henceforth in ordinary Latin characters upon ordinary parchment, and that no abbreviations should be used except those easily understood.

By decree of pope Leo X they were created papal nobles, ranking as Comes palatinus (' Count Palatine '), familiars and members of the papal household, so that they might enjoy all the privileges of domestic prelates and of prelates in actual attendance on the Pope, as regards plurality of benefices as well as expectives.

This can be clearly seen in the ministry of two popes: Pope Leo I in the 5th century, and Pope Gregory I in the 6th century.

Since Pope Leo XIII issued the bull Apostolicae Curae in 1896, the Catholic Church has insisted that Anglican orders are invalid because of changes in the Anglican ordination rites of the 16th century and divergence in understanding of the theology of priesthood, episcopacy and Eucharist.

The Benedictine Confederation, which was established in 1883 by Pope Leo XIII in his brief Summum semper, is the international governing body of the order, headed by the Abbot Primate.

Rather, in modern times, the various autonomous houses have formed themselves loosely into congregations ( for example, Cassinese, English, Solesmes, Subiaco, Camaldolese, Sylvestrines ) that in turn are represented in the Benedictine Confederation that came into existence through Pope Leo XIII's Apostolic Brief " Summum semper " on July 12, 1883.

He received some votes in the 1605 conclaves which elected Pope Leo XI, Pope Paul V, and in 1621 when Pope Gregory XV was elected, but only in the second conclave of 1605 was he papabile.

As Pope Martin V supported Sforza, Alfonso switched religious allegiance to the Aragonese antipope Benedict XIII.

File: Tomb of Pope Clement XIII Gregorovius. jpg | Tomb of Clement XIII

He was one of the seven cardinals who, in May 1408, deserted Pope Gregory XII, and, with those following Antipope Benedict XIII from Avignon, convened the Council of Pisa, of which Cossa became the leader.

John XXIII was acknowledged as pope by France, England, Bohemia, Prussia, Portugal, parts of the Holy Roman Empire, and numerous Northern Italian city states, including Florence and Venice ; however, the Avignon Pope Benedict XIII was regarded as pope by the Kingdoms of Aragon, Castile, and Scotland and Gregory XII was still favored by Ladislaus of Naples, Carlo I Malatesta, the princes of Bavaria, Louis III, Elector Palatine, and parts of Germany and Poland.

Here he remained, commissioned by Pope Gregory XIII to lecture on polemical theology in the new Roman College.

In 1883, Cyril was declared a Doctor of the Church by Pope Leo XIII.

Distributism ( also known as distributionism or distributivism ) is an economic philosophy that developed in England in the early 20th century based upon the principles of Catholic social teaching, especially the teachings of Pope Leo XIII in his encyclical Rerum Novarum and Pope Pius XI in Quadragesimo Anno.

In 1891 Pope Leo XIII promulgated Rerum Novarum, in which he addressed the " misery and wretchedness pressing so unjustly on the majority of the working class " and spoke of how " a small number of very rich men " had been able to " lay upon the teeming masses of the laboring poor a yoke little better than that of slavery itself .".

* Rerum Novarum ( 1891 ) papal encyclical by Pope Leo XIII

* Pope Benedict XIII

The two line poetic form as a closed couplet was also used by William Blake in his poem Auguries of Innocence and also by Byron ( Don Juan ( Byron ) XIII ); John Gay ( Fables ); Alexander Pope ( An Essay on Man ).

In more detail, the gradual shift to March 11 induced Pope Gregory XIII to create a modern Gregorian calendar.

The history of Italian cinema began just a few months after the Lumière brothers had patented their Cinematographe, when Pope Leo XIII was filmed for a few seconds in the act of blessing the camera.

* 1582 – Pope Gregory XIII announces the Gregorian calendar.

* 1649 – Pope Benedict XIII ( d. 1730 )

He moved to Rome, received a lifetime annuity from Pope Gregory XIII ( after first having been rejected by Pope Pius V ) and finished his autobiography.

It was established by Pope John Paul II on May 9, 1981 with the Motu Proprio Familia a Deo Instituta and substituted for the Committee for the Family of Pope Paul VI, which had been established in 1973.

The Pontifical Council for the Pastoral Care of Health Care Workers was set up by the Motu Proprio Dolentium Hominum of 11 February 1985, by Pope John Paul II who reformed the Pontifical Commission for the Pastoral Assistance to Health Care Workers into its present form in 1988.

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.

On 7 December 1965, Pope Paul VI issued the Motu Proprio " Integrae servandae " that re-constituted the Holy Office as the " Sacred Congregation for the Doctrine of the Faith.

On 6 February 2008, the Holy See's newspaper, L ' Osservatore Romano, published a note by the Vatican Secretariat of State, announcing that, with reference to the dispositions of the Motu Proprio Summorum Pontificum, Pope Benedict XVI had decided to amend the Good Friday prayer for the Jews contained in the Roman Missal of 1962, and decreeing that the amended text " must be used, beginning from the current year, in all celebrations of the Liturgy of Good Friday according to the aforementioned Missale Romanum ".

The Roman Catholic Church uses decrees from the Pope such as a papal Bull, Papal Brief or Motu Proprio as legislative acts.

On June 11, 2007 Pope Benedict XVI issued a Motu Proprio beginning with the words Constitutione Apostolica, subtitled De aliquibus mutationibus in normis de electione romani pontificis which reinstates the traditional norms for the vote required to elect the Pope.

Pope Pius V by Motu Proprio of 20 March, 1571, published 5 April, had prohibited all existing offices of the B. V. Mary, disapproving in general all the prayers therein, and substituting a new Officium B. Virginis without those prayers and consequently without any litany.

* Motu proprios of Pope Paul VI

* Motu proprios of Pope John Paul II

* Motu proprios of Pope Benedict XVI

Blessed Pope John Paul II declared the Cathedral of the Immaculate Conception a Minor Basilica in 1982 through a Motu Proprio.

* July 7, 2007: Motu proprio Summorum Pontificum is issued by Pope Benedict XVI explicitly liberating the Roman Missal of 1962 as an extraordinary form of the Roman Rite.

On August 30, 2011, Pope Benedict XVI issued the Motu Proprio Quaerit Semper which modifies the competency of the congregation by taking away responsibility for unconssumated marriages and nullity of ordination cases.

It " considers those matters, whether concerning persons or things, affecting the Catholic Oriental Churches " and was founded by the Motu Proprio Dei Providentis of Pope Benedict XV as the " Sacred Congregation for the Oriental Church " on 1 May 1917.

He devoted himself to a study of old church music, and his ideas gave rise to Pope Pius X's Motu proprio.

The honour is bestowed by a Motu Proprio of the Pope.

The excommunication of canon 2319 was subsequently lifted ( retroactively ) by Pope Paul VI in the 1970 Motu proprio Matrimonia Mixta.

The goals and hopes of the Academy were expressed by Pope Pius XI in the Motu Proprio which brought about its re-foundation in 1936: