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Milic of Kremsier

(Encyclopedia)Milic of Kremsier mēˈlēch, krāmˈzēr [key], d. 1374, Bohemian reformer. He was a Roman Catholic priest. In 1363 he began a career of preaching in Moravia as well as in Prague. Believing that the ...

Eudoxus of Cnidus

(Encyclopedia)Eudoxus of Cnidus yo͞odŏkˈsəs, nīˈdəs [key], 408?–355? b.c., Greek astronomer, mathematician, and physician. From the accounts of various ancient writers, he appears to have studied with Plat...

Matthew of Paris

(Encyclopedia)Matthew of Paris or Matthew Paris, d. 1259, English historian, a monk of St. Albans. He became the historiographer of the convent after the death (c.1236) of Roger of Wendover. The first part of his C...

Paris, Treaty of

(Encyclopedia)Paris, Treaty of, any of several important treaties, signed at or near Paris, France. For the Treaty of Paris of 1856, see Paris, Congress of. For the Treaty of Paris of 1898, see Spanish-Americ...

polarization of light

(Encyclopedia)polarization of light, orientation of the vibration pattern of light waves in a singular plane. Unpolarized light can be converted into a single polarized beam by means of the Nicol prism, a device ...

Library of Congress

(Encyclopedia)Library of Congress, national library of the United States, Washington, D.C., est. 1800. It occcupies three buildings on Capitol Hill: The Thomas Jefferson Building (1897), the John Adams Building (19...

Paris, Declaration of

(Encyclopedia)Paris, Declaration of, 1856, agreement concerning the rules of maritime warfare, issued at the Congress of Paris. It was the first major attempt to codify the international law of the sea. Conflicting...

calculus of variations

(Encyclopedia)calculus of variations, branch of mathematics concerned with finding maximum or minimum conditions for a relationship between two or more variables that depends not only on the variables themselves, a...

Salamanca, University of

(Encyclopedia)Salamanca, University of, at Salamanca, Spain; founded 1218 by Alfonso IX of León, reorganized 1254 by Alfonso X of Castile and León. It has faculties of philosophy, philology, geography and history...

Richard of Devizes

(Encyclopedia)Richard of Devizes dĭvīˈzĭz [key], fl. late 12th cent., English chronicler and monk. He wrote a lively Chronicon de rebus gestis Ricardi primi [chronicle of the deeds of Richard I], a valuable his...