Columbia Encyclopedia

(Encyclopedia) Otto I, 1815–67, first king of the Hellenes (1833–62). The second son of King Louis I of Bavaria, he was chosen (1832) by a conference of European powers at London to rule newly independent Greece...

(Encyclopedia) dubnium do͞obˈnēəm [key], artificially produced radioactive chemical element; symbol Db; at. no. 105; mass number of most stable isotope 268; m.p., b.p., and sp. gr. unknown; valence +5. Situated ...

(Encyclopedia) Trevelyan, Sir George Otto, 1838–1928, British historian and politician. He served as a Whig member of the House of Commons from 1865 to 1897. He held posts under W. E. Gladstone as civil lord of th...

(Encyclopedia) Conrad the Red, d. 955, duke of Lotharingia (Lorraine; 944–53). A Franconian adherent of the German king Otto I (later Holy Roman emperor), he was made duke of Lotharingia and married Otto's daughte...

(Encyclopedia) Bismarck, Otto von bĭzˈmärk, Ger. ôˈtō fən bĭsˈmärk [key], 1815–98, German statesman, known as the Iron Chancellor. The Bismarckian era closed with the death of Emperor Frederick III. A ...

(Encyclopedia) John XII, c.937–964, pope (955–64), a Roman (count of Tusculum) named Octavian; successor of Agapetus II and predecessor of either Leo VIII or Benedict V. His father, Alberic, secured John's elect...

(Encyclopedia) Eberhard āˈbərhärtˌ [key], d. 939, duke of Franconia; brother of the German king, Conrad I, whom he succeeded as duke. The first to rebel against the centralizing policy of Holy Roman Emperor Ott...

(Encyclopedia) atomic bomb or A-bomb, weapon deriving its explosive force from the release of nuclear energy through the fission (splitting) of heavy atomic nuclei. The first atomic bomb was produced at the Los Alam...

(Encyclopedia) Lothair, 941–86, French king (954–86), son and successor of King Louis IV. During the early part of his reign he was dominated by Hugh the Great. Even after Hugh's death he was involved in conflic...

(Encyclopedia) Berengar II bĕrˈĭng-gər [key], d. 966, marquis of Ivrea. In 950 he made himself and his son joint kings of Italy, but his great unpopularity and his attempt to force Adelaide, his predecessor's wi...