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Mars, in astronomy
(Encyclopedia)Mars, in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Mars has two natural satellites, discovered by Asaph Hall in 1877. The innermost of these, Phobos...Buenos Aires
(Encyclopedia)Buenos Aires bwāˈnəs īˈrēz, ârˈēz, Span. bwāˈnōs īˈrās ...Niger, country, Africa
(Encyclopedia)CE5 Niger nīˈjər, nēzhârˈ [key], officially Republic of Niger, republic (2015 est. pop. 18,045,729), 489,189 sq mi (1,267,000 sq km), W Africa. It borders on Burkina Faso and Mali in the west...Mauritania
(Encyclopedia)CE5 Mauritania môrĭtāˈnēə [key], officially Islamic Republic of Mauritania, republic (2015 est. pop. 4,182,000), 397,953 sq mi (1,030,700 sq km), NW Africa. It borders on the Atlantic Ocean i...Great Basin
(Encyclopedia)Great Basin, semiarid, N section of the Basin and Range province, the intermontane plateau region of W United States and N Mexico. Lying mostly in Nevada and extending into California, Oregon, Idaho, ...North Africa, campaigns in
(Encyclopedia)North Africa, campaigns in, series of military contests for control of North Africa during World War II. The desert war started in 1940 and for more than two years thereafter seesawed between NE Libya...Western Sahara
(Encyclopedia)CE5 Western Sahara, territory (2015 est. pop. 526,000), 102,703 sq mi (266,000 sq km), NW Africa, occupied by Morocco. It borders on the Atlantic Ocean in the west, on Morocco in the north, on Alge...reclamation of land
(Encyclopedia)reclamation of land, practice of converting land deemed unproductive into arable land by such methods as irrigation, drainage, flood control, altering the texture and mineral and organic content of so...spurge
(Encyclopedia)CE5 Snow-on-the-mountain, Euphorbia marginata spurge spûrj [key], common name for members of the Euphorbiaceae, a family of herbs, shrubs, and trees of greatly varied structure and almost cosmopo...Rulers of the Byzantine Empire (table)
(Encyclopedia)Rulers of the Byzantine Empire ...Browse by Subject
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