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Leo IV, Saint, pope

(Encyclopedia)Leo IV, Saint, d. 855, pope (847–55), a Roman; successor of Sergius II. He had seen the Saracen attack on Rome (846), and to prevent its recurrence he fortified the city and its suburbs. He built a ...

Liman von Sanders, Otto

(Encyclopedia)Liman von Sanders, Otto ôˈtō lēˈmän fən zänˈdərs [key], 1855–1929, German general. In 1913 he was made head of the German military mission to Constantinople to reorganize the army of the O...

Fischer, Ernst Otto

(Encyclopedia)Fischer, Ernst Otto, 1918–2007, German chemist, Ph.D. Technical Univ. of Munich (TUM), 1952. Fischer was a professor at TUM (1954–57) and the Univ. of Munich (1957–64). He returned to TUM in 196...

Roman law

(Encyclopedia)Roman law, the legal system of Rome from the supposed founding of the city in 753 b.c. to the fall of the Byzantine Empire in a.d. 1453; it was later adopted as the basis of modern civil law. Most aut...

Worms, Concordat of

(Encyclopedia)Worms, Concordat of, 1122, agreement reached by Pope Calixtus II and Holy Roman Emperor Henry V to put an end to the struggle over investiture. By its terms the emperor guaranteed free election of bis...

Roman religion

(Encyclopedia)Roman religion, the religious beliefs and practices of the people of ancient Rome. The spirits were held in awe and were placated with offerings and prayers. In the earliest period of Roman state r...

Gaius, Roman jurist

(Encyclopedia)Gaius gāˈəs, gīˈ– [key], fl. 2d cent., Roman jurist. He is known for the Institutes (repr., 2 vol., 1967; Vol. I is a translation of the text, Vol. II consists of commentaries), a legal textboo...

Mieszko I

(Encyclopedia)Mieszko I –chĭsläf [key], c.922–992, duke of Poland (962–92), the first important member of the Piast dynasty. The first German invasions of Poland began in 963. To avert this threat, Mieszko ...

Arles, kingdom of

(Encyclopedia)Arles, kingdom of, was formed in 933, when Rudolf II, king of Transjurane Burgundy, united the kingdom of Provence or Cisjurane Burgundy to his lands and established his capital at Arles. Holy Roman E...

Joseph I

(Encyclopedia)Joseph I, 1678–1711, Holy Roman emperor (1705–11), king of Hungary (1687–1711) and of Bohemia (1705–11), son and successor of Leopold I. Joseph became Holy Roman emperor in the midst of the Wa...