Category
page 1Pope Leo XIII
Leo XIII
Pope of the Catholic Church from 1878 to 1903 (1810–1903)
Thérèse of Lisieux
French Discalced Carmelite nun, Doctor of the Church (1873–1897)
Carpineto Romano
Italian comune
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Thomism
thumb|Painting of Saint Thomas Aquinas, after whom Thomism is named
Vatican Apostolic Archives
central repository in the Vatican City for all of the acts promulgated by the Holy See
Louis de Montfort
French Catholic saint, priest, and confessor
distributism
thumb|upright=1.0|Self-portrait of G. K. Chesterton based on the distributist slogan "[[Three acres and a cow"]]
The Catholic University of America
private Catholic University in Washington, D.C.
Ludwig von Pastor
German historian and Austrian diplomat (1854-1928)
James Gibbons
Catholic cardinal (1834–1921)
Joseph Hergenröther
German Church historian and canonist (1824-1890)
Domenico Ferrata
Catholic cardinal (1847–1914)
Humanum Genus
encyclical
Clare of Montefalco
Augustinian nun and abbess
Pontifical Academy of St. Thomas Aquinas

Giuseppe Pecci
Italian cardinal (1807-1890)
Mediatrix
Mediatrix is a title given to Mary, mother of Jesus used by some Christians. It refers to the role of the Blessed Virgin Mary as a mediator by intercession in the salvific redemption by her son Jesus Christ, the one proper Mediator by action. Mediatrix is an ancient title that has been used by many saints since at least the 5th century. Its use grew during the Middle Ages and reached its height in the writings of Louis de Montfort and Alphonsus Liguori in the 18th century.
John Joseph Frederick Otto Zardetti
American Roman Catholic archbishop (1847-1902)
Americanism
preference among New World Catholics for more liberal theology (Religious particularism)
Sua Santità papa Leone XIII
1898 film by William Kennedy Dickson