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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...

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 ...

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...

Chalcedon, Council of

(Encyclopedia)Chalcedon, Council of, fourth ecumenical council, convened in 451 by Pulcheria and Marcian, empress and emperor of the East, to settle the scandal of the Robber Synod and to discuss Eutychianism (see ...

World Economic Forum

(Encyclopedia)World Economic Forum (WEF), independent international organization that seeks to improve the state of the world by encouraging partnerships between the public and private sectors, est. 1971 by the Ger...

Constantinople, First Council of

(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. The council drew...

World Council of Churches

(Encyclopedia)World Council of Churches, an international, interdenominational organization of most major Protestant, Anglican, and Eastern Orthodox Christian churches; founded in Amsterdam in 1948, its headquarter...

Nicaea, Second Council of

(Encyclopedia)Nicaea, Second Council of, 787, 7th ecumenical council, convened by Byzantine Empress Irene. Called to refute iconoclasm, the council declared that images ought to be venerated (but not worshiped) and...

Constantinople, Second Council of

(Encyclopedia)Constantinople, Second Council of, 553, regarded generally as the fifth ecumenical council. It was convened by Byzantine Emperor Justinian I to settle the dispute known as the Three Chapters. In an at...

Lyons, First Council of

(Encyclopedia)Lyons, First Council of lyôNˈ [key], 1245, 13th ecumenical council of the Roman Catholic Church, convened at Lyons, France, by Pope Innocent IV to deal with his struggle with Holy Roman Emperor Fred...