The Fourth AEcumenical Council, held, A.D. 451, in the pontificate of Leo I, at Chalcedon, a city of Bithynia, in Asia Minor. The principal purpose of the Council was to define the Catholic doctrine on the two natures of Christ, against the Monophysite heresy.
This dictionary contains not only definitions and explanations of every subject in Religion, Scripture, tradition, doctrine, morals, sacraments, rites, customs, devotions and symbolism, but also accounts of the Church in every continent, country, diocese; missions, notable Catholic centers, cities, and places with religious names; religious orders, church societies, sects and false religions. It has brief articles also on historical events and personages, on the Old Testament and New, and on popes, prelates, priests, men and women of distinction, showing what the Church has done for civilization and correcting many errors which have hitherto passed for history.Wikipedia
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