Columbia Encyclopedia

(Encyclopedia)  CE5 Roman Empire (a.d. 117) CE5 Rome, Ital. Roma, city (1991 pop. 2,775,250), capital of Italy and see of the pope, whose residence, Vatican City, is a sovereign state within the city of Rome. R...

(Encyclopedia)  CE5 titles, terms used to designate degrees of sovereignty, nobility, and honor. In the Muslim world the temporal successors of Muhammad received the title caliph (literally, “successor”). ...

(Encyclopedia)  CE5 Poland, Pol. Polska, officially Republic of Poland, republic (2015 est. pop. 38,265,000), 120,725 sq mi (312,677 sq km), central Europe. It borders on Germany in the west, on the Baltic Sea and...

(Encyclopedia) Alexandria, Arabic Al Iskandariyah, city, N Egypt, on the Mediterranean Sea. It is at the western extremity of the Nile River delta, situated on a narrow isthmus between the sea and Lake ...

(Encyclopedia) logic, the systematic study of valid inference. A distinction is drawn between logical validity and truth. Validity merely refers to formal properties of the process of inference. Thus, a conclusion w...

(Encyclopedia) diving, deep-sea, act of descending into deep water, generally with some form of breathing apparatus, and remaining there for an extended period. It is used in fishing for sponges, coral, and pearls; ...

(Encyclopedia) Catherine II or Catherine the Great, 1729–96, czarina of Russia (1762–96). Catherine increased the power and prestige of Russia by skillful diplomacy and by extending Russia's western boundary i...

(Encyclopedia) Carthage kärˈthĭj [key], ancient city, on the northern shore of Africa, on a peninsula in the Bay of Tunis and near modern Tunis. The Latin name, Carthago or Cartago, was derived from the Phoenicia...

(Encyclopedia) Roman architecture, structures produced by the ancient Romans. Most important among the structures developed by the Romans themselves were basilicas, baths, amphitheaters, and triumphal arches. U...

(Encyclopedia)  Rulers of France since 987(including dates of reign) The Capetians House of Valois House of Bourbon The First Republic The First Empire Bourbon Restoration House of Bourbon-Orléans T...