Leo XIII

Leo XIII 1810-1903, pope (1878-1903), an Italian (b. Carpineto, E of Rome) named Gioacchino Pecci; successor of Pius IX. Ordained in 1837, he earned an excellent reputation as archbishop of Perugia (1846-77), and was created cardinal in 1853. Leo's election brought a turn in the course of the papacy ; he was abreast of the times and tried, especially by preaching to the whole church, in encyclical letters, to form Roman Catholic attitudes appropriate to living in the modern world. His influence was increased by the length of his reign; thus he was able to furnish the college of cardinals with an unusual number of excellent men (including John Henry Newman in 1879 and James Gibbons in 1886). By a combination of vigor and tact he ended the Kulturkampf (1887). He tried repeatedly to bring French Roman Catholics to support the republic. In 1885 his encyclical Immortale Dei charted the course of Catholics as responsible citizens in modern secular, democratic states; he thus refuted both the French royalists' claim that they were especially good Catholics and the contention of French anti-Catholics that the church was committed to political reaction. The letter was a great vindication of Catholic democrats. With the anti-Catholic government of Italy there was no conciliation. Leo's program for society appeared in Rerum novarum (1891), an arraignment of capitalism that also showed the insufficiencies of Marxian socialism; it set up Catholic aims and ideals. (It was supplemented in Quadragesimo Anno [1931] of Pius XI and in Mater et Magistra [1961] of John XXIII.) Leo met the intellectual attack on Christianity by advancing Thomism, with its insistence that there can be no conflict between science and faith; to this end he wrote Aeterni Patris (1879), declaring the philosophy of St. Thomas Aquinas official and requiring its study; he also founded the institute of Thomistic philosophy at the Univ. of Louvain. He was profoundly interested in the advancement of learning. He opened the Vatican secret archives to all scholars, and he reminded Catholic historians that nothing but the whole truth must be found in their work. He encouraged Bible study and set up (1902) the permanent Biblical Commission. He sponsored a number of faculties and universities, including the Catholic Univ. at Washington, D.C. For sheer productivity Leo surpassed all his predecessors in modern times. He was succeeded by Pius X.

Bibliography: See biography by K. K. Burton (1962); studies by L. P. Wallace (1966) and J. Watzlawik (1966); E. Gilson, ed., The Church Speaks to the Modern World (tr. 1954; con aining nine encyclicals of Pope Leo XIII); E. T. Gargan, ed., Leo XIII and the Modern World (1961).

Leo XIII (1810–1903). Pope from 20 Feb. 1878. Born Giocchino Vincenzo Pecci, he was sent to Perugia as archbishop in 1845. He immediately set about improving the education of his clergy, and encouraged the study of Thomas Aquinas in the diocesan seminary (Thomism was later to be strongly advocated in the encyclical, Aeterni Patris). He carried his support of neo-scholasticism into his pontificate, and one of his first acts was to write the encyclical commending the study of Aquinas's philosophy. He was a considerable patron of learning, insisting that the Church had nothing to fear from the truth. He failed to reach an accommodation with the new kingdom of Italy, and his encyclical Rerum Novarum gave support to those wishing to restore the ancien régime, though his endorsement of the workers' movement was of great psychological importance as the first such act by an authority of international standing.