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buttress

(Encyclopedia)CE5 Types of buttresses buttress, mass of masonry built against a wall to strengthen it. It is especially necessary when a vault or an arch places a heavy load or thrust on one part of a wall. In t...

Toltec

(Encyclopedia)Toltec tŏlˈtĕk [key], ancient civilization of Mexico. The name in Nahuatl means “master builders.” The Toltec formed a warrior aristocracy that gained ascendancy in the Valley of Mexico c.a.d. ...

Lancaster, cities, United States

(Encyclopedia)Lancaster. 1 Uninc. city (1990 pop. 97,291), Los Angeles co., S Calif., in Antelope Valley and in the Mojave Desert; laid out 1894. It developed as a trade center for an irrigated farming area and has...

Gothic revival

(Encyclopedia)Gothic revival, term designating a return to the building styles of the Middle Ages. Although the Gothic revival was practiced throughout Europe, it attained its greatest importance in the United Stat...

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 ...

Ur

(Encyclopedia)Ur ûr [key], ancient city of Sumer, S Mesopotamia. The city is also known as Ur of the Chaldees. It was an important center of Sumerian culture (see Sumer) and is identified in the Bible as the home ...

Shevchenko, Taras Hryhorovych

(Encyclopedia)Shevchenko, Taras, 1814–1861, Ukrainian poet, writer, and artist, b. Ukraine, studied at the St. Petersburg Academy of Art. The premier Ukrainian poet...

Easter Island

(Encyclopedia)Easter Island, Span. Isla de Pascua, Polynesian Rapa Nui, remote island (2020 est. pop. 5,000), 66 sq mi (171 sq km), in the South Pacific, c.2,200 ...

soap

(Encyclopedia)soap, a cleansing agent. It cleanses by lowering the surface tension of water, by emulsifying grease, and by absorbing dirt into the foam. Ancient peoples are believed to have employed wood ashes and ...

Illinois, state, United States

(Encyclopedia)CE5 Illinois, midwestern state in the N central United States. It is bordered by Lake Michigan and Indiana (E); Kentucky, across the Ohio River (SE); Missouri and Iowa, across the Mississippi River...