Pope Leo XIII in the context of "Catholic social teaching"

Cyril (Greek: Κύριλλος, romanized: Kýrillos; born Constantine, 826–869) and Methodius (Μεθόδιος, Methódios; born Michael, 815–885) were brothers, Byzantine Christian theologians and missionaries. For their work evangelizing the Slavs, they are known as the "Apostles to the Slavs".

They are credited with devising the Glagolitic alphabet, the first alphabet used to transcribe Old Church Slavonic. After their deaths, their pupils continued their missionary work among other Slavs. Both brothers are venerated in the Eastern Orthodox Church as saints with the title of "equal-to-apostles". In 1880, Pope Leo XIII introduced their feast into the calendar of the Roman Rite of the Catholic Church. In 1980, the first Slav pope, Pope John Paul II declared them co-patron saints of Europe, together with Benedict of Nursia.

Pope Pius XI (Italian: Pio XI; born Ambrogio Damiano Achille Ratti, Italian: [amˈbrɔːdʒo daˈmjaːno aˈkille ˈratti]; 31 May 1857 – 10 February 1939) was head of the Catholic Church from 6 February 1922 until his death in February 1939. He was also the first sovereign of the Vatican City upon its creation on 11 February 1929.

Pius XI issued numerous encyclicals, including Quadragesimo anno on the 40th anniversary of Pope Leo XIII's groundbreaking social encyclical Rerum novarum, highlighting the capitalistic greed of international finance, the dangers of atheistic socialism/communism, and social justice issues, and Quas primas, establishing the feast of Christ the King in response to anti-clericalism. The encyclical Studiorum ducem, promulgated 29 June 1923, was written on the occasion of the 6th centenary of the canonization of Thomas Aquinas, whose thought is acclaimed as central to Catholic philosophy and theology. The encyclical also singles out the Pontifical University of Saint Thomas Aquinas, Angelicum as the preeminent institution for the teaching of Aquinas: "ante omnia Pontificium Collegium Angelicum, ubi Thomam tamquam domi suae habitare dixeris" (before all others the Pontifical Angelicum College, where Thomas can be said to dwell). The encyclical Casti connubii promulgated on 31 December 1930 prohibited Catholics from using contraception.

The Most Sacred Heart of Jesus (Latin: Cor Jesu Sacratissimum) is one of the most widely practised and well-known Catholic devotions, wherein the heart of Jesus Christ is viewed as a symbol of "God's boundless and passionate love for mankind". This devotion to Christ is predominantly used in the Catholic Church, followed by high church Anglicans, and some Western Rite Orthodox. In the Latin Church, the liturgical Solemnity of the Most Sacred Heart of Jesus is celebrated on the third Friday after Pentecost. The 12 promises of the Most Sacred Heart of Jesus are also popular.

The devotion is especially concerned with what the church deems to be the long-suffering love and compassion of the heart of Christ towards humanity. The popularization of this devotion in its modern form is derived from a Roman Catholic nun from France, Margaret Mary Alacoque, who said she learned the devotion from Jesus during a series of apparitions to her between 1673 and 1675, and later, in the 19th century, from the mystical revelations of another Catholic nun in Portugal, Mary of the Divine Heart, a religious sister of the congregation of the Good Shepherd, who requested in the name of Christ that Pope Leo XIII consecrate the entire world to the Sacred Heart of Jesus. Predecessors to the modern devotion arose unmistakably in the Middle Ages in various facets of Catholic mysticism, particularly with Gertrude the Great.

Cyril of Jerusalem (Greek: Κύριλλος Α΄ Ἱεροσολύμων, Kýrillos A΄ Hierosolýmōn; Latin: Cyrillus Hierosolymitanus; c. 313 – 386) was a theologian of the Early Church. About the end of AD 350, he succeeded Maximus as Bishop of Jerusalem, but was exiled on more than one occasion due to the enmity of Acacius of Caesarea, and the policies of various emperors. Cyril left important writings documenting the instruction of catechumens and the order of the Liturgy in his day.

Cyril is venerated as a saint within the Roman Catholic Church, the Eastern Orthodox Church, Oriental Orthodox Church, and the Anglican Communion. In 1883, Cyril was declared a Doctor of the Church by Pope Leo XIII.

The Chapel of Graces of the Miraculous Virgin (French: La Chapelle du Grâce de Sainte Vierge Miraculeuse) or informally the Chapel of Our Lady of the Miraculous Medal, is a Roman Catholic Marian shrine located in Paris, France. It is dedicated to the Blessed Virgin Mary under the Marian title the Virgin of Miracles.

The venerated Marian image enshrined within merited a decree of Pontifical coronation from Pope Leo XIII in 1897 as well as an Apostolic Visit from Pope John Paul II on 31 May 1980.

The Archbishop of Glasgow is an archiepiscopal title that takes its name after the city of Glasgow in Scotland. The position and title were abolished by the Church of Scotland in 1689; and, in the Catholic Church, the title was restored by Pope Leo XIII in 1878. In the Scottish Episcopal Church, it is now part of the Episcopal bishopric of Glasgow and Galloway.

The present Catholic archbishop is William Nolan, who was installed on 26 February 2022.

Cyril (Greek: Κύριλλος, romanized: Kýrillos; born Constantine (Greek: Κωνσταντίνος, romanized: Konstantínos, 826–869) and Methodius; Μεθόδιος, Methódios; born Michael; Greek: Μιχαήλ, romanized: Michaíl, 815–885) were brothers, Byzantine Christian theologians and missionaries. For their work evangelizing the Slavs, they are known as the "Apostles to the Slavs".

They are credited with devising the Glagolitic alphabet, the first alphabet used to transcribe Old Church Slavonic. After their deaths, their pupils continued their missionary work among other Slavs. Both brothers are venerated in the Eastern Orthodox Church as saints with the title of "equal-to-apostles". In 1880, Pope Leo XIII introduced their feast into the calendar of the Roman Rite of the Catholic Church. In 1980, the first Slav pope, Pope John Paul II declared them co-patron saints of Europe, together with Benedict of Nursia.