(Encyclopedia) Constantinople, First Council of, 381, second ecumenical council. It was convened by Theodosius I, then emperor of the East and a recent convert, to confirm the victory over Arianism.…
(Encyclopedia) Cluniac orderCluniac orderkl&oomacr;ˈnē-ăkˌ [key], medieval organization of Benedictines centered at the abbey of Cluny, France. Founded in 910 by the monk Berno and Count William…
(Encyclopedia) Lyons, Second Council of, 1274, 14th ecumenical council of the Roman Catholic Church. It was summoned by Pope Gregory X to discuss problems in the Holy Land, to remove the schism of…
(Encyclopedia) Leo III (Leo the Isaurian or Leo the Syrian), c.680–741, Byzantine emperor (717–41). He was probably born in N Syria (rather than in Isauria, as once thought). He held diplomatic and…
(Encyclopedia) Basil the Great, SaintBasil the Great, Saintbăˈzĭl, bāˈ– [key], c.330–379, Greek prelate, bishop of Caesarea in Cappadocia, Doctor of the Church and one of the Four Fathers of the…
(Encyclopedia) Urban II, c.1042–1099, pope (1088–99), a Frenchman named Odo (or Eudes) of Lagery; successor of Victor III. He studied at Reims and became a monk at Cluny. He went to Rome, as prior of…
(Encyclopedia) Urban VI, 1318?–1389, pope (1378–89), whose election was the immediate cause of the Great Schism; a Neapolitan named Bartolomeo Prignano; successor of Gregory XI. He was made…
(Encyclopedia) Sixtus V, 1521–90, pope (1585–90), an Italian (b. near Montalto) named Felice Peretti; successor of Gregory XIII. He entered the Franciscan order in early youth. After ordination (1547…
(Encyclopedia) Otto III, 980–1002, Holy Roman emperor (996–1002) and German king (983–1002), son of Holy Roman Emperor Otto II and the Byzantine princess Theophano. On Otto's accession Henry the…
The Curious History of the Gregorian Calendar Eleven days that never were by Ben Snowden RELATED LINKS Leap Year ExplainedIdes of MarchOrigins of April Fools' DayHistory…