(Encyclopedia) Eudoxus of CnidusEudoxus of Cnidusy&oomacr;dŏkˈsəs, nīˈdəs [key], 408?–355? b.c., Greek astronomer, mathematician, and physician. From the accounts of various ancient writers, he…
(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…
(Encyclopedia) Adolf of NassauAdolf of Nassaunäˈsou [key], d. 1298, duke of Luxembourg, German king (1292–98). He owed his election to the ecclesiastical electors, who, fearing the growing power and…
(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,…
(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…
(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…
(Encyclopedia) Godfrey of BouillonGodfrey of Bouillonb&oomacr;yôNˈ [key], c.1058–1100, Crusader, duke of Lower Lorraine. He fought for Holy Roman Emperor Henry IV against Pope Gregory VII and…
(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…
(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…
(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,…
