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Shuvalov, Piotr Andreyevich, Count

(Encyclopedia)Shuvalov, Piotr Andreyevich, Count pyôˈtər əndrāˈəvĭch sho͞oväˈləf [key], 1827–89, Russian administrator and diplomat. An adviser to Czar Alexander II, he opposed the czar's reforms and ...

Gelon

(Encyclopedia)Gelon jēˈlŏn [key], d. 478 b.c., Greek Sicilian ruler. As tyrant of Gela, his native city, he interfered in the struggle for power in Syracuse (485 b.c.) and made himself the leader of the popular ...

Brunel, Sir Marc Isambard

(Encyclopedia)Brunel, Sir Marc Isambard ĭzˈəmbärdˌ bro͞onĕlˈ [key], 1769–1849, British engineer and inventor. Born in France, he came to the United States in 1793 as a royalist refugee. He became chief en...

Ethiopian Highlands

(Encyclopedia)Ethiopian Highlands, rugged plateau region of E Africa, covering about two thirds of Ethiopia. It is divided into two massifs by the Great Rift Valley; the Amhara, or Ethiopian Plateau, is the larger ...

Appalachian Mountains

(Encyclopedia)Appalachian Mountains ăpəlāˈchən, –chēən, –lăchˈ– [key], mountain system of E North America, extending in a broad belt c.1,600 mi (2,570 km) SW from the Gaspé Peninsula in Quebec prov....

Tennessee Valley Authority

(Encyclopedia)Tennessee Valley Authority (TVA), independent U.S. government corporate agency, created in 1933 by act of Congress; it is responsible for the integrated development of the Tennessee River basin. The h...

Pacific Ocean

(Encyclopedia)CE5 Pacific Ocean, largest and deepest ocean, c.70,000,000 sq mi (181,300,000 sq km), occupying about one third of the earth's surface; named by the explorer Ferdinand Magellan; the southern part i...

Speed, John

(Encyclopedia)Speed, John, 1552?–1629, English historian and cartographer. He abandoned his trade as a tailor to engage in mapmaking. Many of his maps of parts of England and Wales were published in The Theatre o...

Celaenae

(Encyclopedia)Celaenae sĭlēˈnē [key], ancient city of Asia Minor, in Phrygia, near the source of the Maeander River, in present-day W central Turkey. In the days of the Persian Empire, Cyrus the Great had a pal...

Nafud

(Encyclopedia)Nafud nĕfo͞odˈ [key], desert area in the northern part of the Arabian peninsula, occupying a great oval depression; 180 mi (290 km) long and 140 mi (225 km) wide. This area of red sand is surrounde...