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Pappus

(Encyclopedia)Pappus păpˈəs [key], fl. c.300, Greek mathematician of Alexandria. He recorded and enlarged on the results of his predecessors, including Euclid and Apollonius of Perga, in his Mathematical Collect...

Koch

(Encyclopedia)Koch kōk [key], family of American industrialists and philanthropists. Fred Chase Koch, 1900–1967, b. Quanah, Tex., grad. Massachusetts Institute of Technology, 1922, was a Wichita, Kans., entrepre...

Holy Roman Emperors (table)

(Encyclopedia)HOLY ROMAN EMPERORS(including dates of reign) Saxon dynasty Salian or Franconian dynasty Hohenstaufen dynasty and rivals Interregnum, 1254–73 Hapsburg, Luxemburg, and other dynasties ...

Wettin

(Encyclopedia)Wettin vĕtˈĭn [key], German dynasty, which ruled in Saxony, Thuringia, Poland, Great Britain, Belgium, and Bulgaria. It takes its name from a castle on the Saale near Halle. The family gained promi...

Prussia

(Encyclopedia)Prussia prŭshˈə [key], Ger. Preussen, former state, the largest and most important of the German states. Berlin was the capital. The chief member of the German Empire (1871–1918) and a state of t...

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...

mortar, in warfare

(Encyclopedia)mortar, in warfare, term originally applied to certain types of artillery with high trajectories, but later applied to an infantry weapon that consists of a tube supported by a bipod that fires a proj...

Melfi

(Encyclopedia)Melfi mĕlˈfē [key], town (1991 pop. 15,757), in Basilicata, S Italy. It is an agricultural and tourist center noted for its wine. In 1041 it was made the first capital of the Norman county of Apuli...

Mott, Frank Luther

(Encyclopedia)Mott, Frank Luther, 1886–1964, American author and professor of journalism, b. near What Cheer, Iowa. He directed (1927–42) the school of journalism at the State Univ. of Iowa and was dean (1942�...

Hoppe, Willie

(Encyclopedia)Hoppe, Willie (William Frederick Hoppe) hŏpˈē [key], 1887–1959, American billiards champion, b. Cornwall, N.Y. He practiced billiards from a very early age and gave exhibitions before he won (190...