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Basel, Council of

(Encyclopedia)Basel, Council of, 1431–49, first part of the 17th ecumenical council in the Roman Catholic Church. It is generally considered to have been ecumenical until it fell into heresy in 1437; after that i...

Ten, Council of

(Encyclopedia)Ten, Council of, in the republic of Venice, a special tribunal created (1310) to avert plots and crimes against the state. It was a direct result of the unsuccessful Tiepolo conspiracy against the Ven...

first aid

(Encyclopedia)first aid, immediate and temporary treatment of a victim of sudden illness or injury while awaiting the arrival of medical aid. Proper early measures may be instrumental in saving life and ensuring a ...

Cyril, Saint (St. Cyril of Jerusalem)

(Encyclopedia)Cyril, Saint (Saint Cyril of Jerusalem) sĭrˈəl [key], c. 315–386, bishop of Jerusalem (c. 350–386), Doctor of the Church. Ordained by his predecessor as bishop, St. Maximus, he was deposed in 3...

Eusebius of Nicomedia

(Encyclopedia)Eusebius of Nicomedia nĭkōmēˈdēə [key], d. 342, Christian churchman and theologian, leader of the heresy of Arianism. He was bishop of Nicomedia (330–39) and patriarch of Constantinople (339�...

Theodore I , Byzantine emperor of Nicaea

(Encyclopedia)Theodore I (Theodore Lascaris), d. 1222, Byzantine emperor of Nicaea (1204–22), son-in-law of the Byzantine emperor Alexius III. He escaped from Constantinople after it was captured (1204) by the La...

Eustathius, Saint

(Encyclopedia)Eustathius, Saint yo͞ostāˈthēəs [key], c.280–c.335, patriarch of Antioch (324?–330?), leader at the First Council of Nicaea. He was deposed and exiled by a faction led by Eusebius of Nicomedi...

Didymus of Alexandria

(Encyclopedia)Didymus of Alexandria, d. c.396, Greek grammarian and theologian, also called Didymus the Blind. His treatise On the Holy Ghost was translated by St. Jerome, who studied briefly with him. Although Did...

Ademar

(Encyclopedia)Ademar or Adhémar both: ădˈəmär [key], d. 1098, French prelate, bishop of Le Puy-en-Velay. At the Council of Clermont (1095), he energetically promoted the First Crusade (see Crusades) and was de...

Athanasius, Saint

(Encyclopedia)Athanasius, Saint ăthənāˈzhəs [key], c.297–373, patriarch of Alexandria (328–73), Doctor of the Church, great champion of orthodoxy during the Arian crisis of the 4th cent. (see Arianism). In...