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American Federation of Labor and Congress of Industrial Organizations

(Encyclopedia)American Federation of Labor and Congress of Industrial Organizations (AFL-CIO), a federation of autonomous labor unions in the United States, Canada, Mexico, Panama, and U.S. dependencies, formed in ...

Hebrew literature

(Encyclopedia)Hebrew literature, literary works, from ancient to modern, written in the Hebrew language. The rise of Zionism, particularly reflected in the writings of Ahad Ha-am (Asher Ginzberg), gave Hebrew ...

American architecture

(Encyclopedia)American architecture, the architecture produced in the geographical area that now constitutes the United States. Wright, generally acknowledged as one of the greatest architects of the 20th cent., ...

missions

(Encyclopedia)missions, term generally applied to organizations formed for the purpose of extending religious teaching, whether at home or abroad. It also indicates the stations or the fields where such teaching is...

Constellations (table)

(Encyclopedia)Constellations 1 Zodiac constellation. ...

light

(Encyclopedia)light, visible electromagnetic radiation. Of the entire electromagnetic spectrum, the human eye is sensitive to only a tiny part, the part that is called light. The wavelengths of visible light range ...

Latin literature

(Encyclopedia)Latin literature, the literature of ancient Rome and of that written in Latin in later eras. Very little remains of the ritualistic songs and the native poetry of the Romans and Latins before the rise...

Rocky Mountains

(Encyclopedia)Rocky Mountains, major mountain system of W North America and easternmost belt of the North American cordillera, extending more than 3,000 mi (4,800 km) from central N.Mex. to NW Alaska; Mt. Elbert (1...

printing

(Encyclopedia)printing, means of producing reproductions of written material or images in multiple copies. There are four traditional types of printing: relief printing (with which this article is mainly concerned)...

calculus

(Encyclopedia)CE5 The derivative f″(x) of the function f(x) at the point P represents the slope of the tangent line at that point. CE5 The area under the curve y=f(x) may be found by calculating the sum of ...