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Reagan, Ronald Wilson

(Encyclopedia)Reagan, Ronald Wilson rāˈgən [key], 1911–2004, 40th president of the United States (1981–89), b. Tampico, Ill. In 1932, after graduation from Eureka College, he became a radio announcer and spo...

organ

(Encyclopedia)CE5 Organ organ, a musical wind instrument in which sound is produced by one or more sets of pipes controlled by a keyboard, each pipe producing only one pitch by means of a mechanically produced ...

Rousseau, Jean Jacques

(Encyclopedia)Rousseau, Jean Jacques ro͞osōˈ [key], 1712–78, Swiss-French philosopher, author, political theorist, and composer. Rousseau's influence on posterity has been equaled by only a few, and it is...

periodical

(Encyclopedia)periodical, a publication that is issued regularly. It is distinguished from the newspaper in format in that its pages are smaller and are usually bound, and it is published at weekly, monthly, quarte...

Carter, Jimmy

(Encyclopedia)Carter, Jimmy (James Earl Carter, Jr.), 1924–, 39th President of the United States (1977–81), b. Plains, Ga, grad. Annapolis, 1946. Carter served in the navy, where he worked with Admiral Hyman G....

symphony

(Encyclopedia)symphony [Gr.,=sounding together], a sonata for orchestra. The Italian operatic overture, called sinfonia, was standardized by Alessandro Scarlatti at the end of the 17th cent. into three sections, th...

Canadian art and architecture

(Encyclopedia)Canadian art and architecture, the various types and styles arts and structures produced in the geographic area that now constitutes Canada. For a discussion of the art of indigenous peoples of Canada...

astronomy

(Encyclopedia)astronomy, branch of science that studies the motions and natures of celestial bodies, such as planets, stars, and galaxies; more generally, the study of matter and energy in the universe at large. ...

Prague

(Encyclopedia)Prague präg, prāg [key], Czech Praha, Ger. Prag, city (1993 pop. 1,216,500), capital and largest city of the Czech Republic and former capital of Czechoslovakia, on both banks of the Vltava (Ger. Mo...

Crusades

(Encyclopedia)CE5 Crusader States (c.1140) Crusades kro͞oˈsādz [key], series of wars undertaken by European Christians between the 11th and 14th cent. to recover the Holy Land from the Muslims. After...