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National Security Council

(Encyclopedia)National Security Council (NSC), federal executive council responsible for planning, coordinating, and evaluating the defense policies of the United States and also exercising direction over the Centr...

Lateran Council, First

(Encyclopedia)Lateran Council, First, 1123, 9th ecumenical council of the Roman Catholic Church, summoned by Pope Calixtus II to signal the end of the investiture controversy by confirming the Concordat of Worms (1...

Lateran Council, Second

(Encyclopedia)Lateran Council, Second, 1139, 10th ecumenical council of the Roman Catholic Church, convened at the Lateran Palace, Rome, by Pope Innocent II. The council attempted to heal the wounds left by the sch...

Lateran Council, Third

(Encyclopedia)Lateran Council, Third, 1179, 11th ecumenical council of the Roman Catholic Church. It was convened at the Lateran Palace, Rome, by Pope Alexander III after the Peace of Venice (1178) had reconciled h...

Lateran Council, Fourth

(Encyclopedia)Lateran Council, Fourth, 1215, 12th ecumenical council of the Roman Catholic Church, convened at the Lateran Palace, Rome, by Pope Innocent III to crown the work of his pontificate. It was one of the ...

Lateran Council, Fifth

(Encyclopedia)Lateran Council, Fifth, 1512–17, 18th ecumenical council of the Roman Catholic Church, convened by Pope Julius II and continued by his successor Leo X. Julius called the council to counter an attemp...

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...

Vatican Council, First

(Encyclopedia)Vatican Council, First, 1869–70, the 20th ecumenical council of the Roman Catholic Church (see council, ecumenical), renowned chiefly for its enunciation of the doctrine of papal infallibility. Tw...

Vatican Council, Second

(Encyclopedia)Vatican Council, Second, popularly called Vatican II, 1962–65, the 21st ecumenical council (see council, ecumenical) of the Roman Catholic Church, convened by Pope John XXIII and continued under Pau...

Trent, Council of

(Encyclopedia)Trent, Council of, 1545–47, 1551–52, 1562–63, 19th ecumenical council of the Roman Catholic Church, convoked to meet the crisis of the Protestant Reformation. Earlier efforts at reforming the ch...