Columbia Encyclopedia

(Encyclopedia)  CE5 Burundi bəro͞onˈdē [key], officially Republic of Burundi, republic (2020 est. pop. ...

(Encyclopedia) mathematics, deductive study of numbers, geometry, and various abstract constructs, or structures; the latter often “abstract” the features common to several models derived from the empirical, or ...

(Encyclopedia) American literature, literature in English produced in what is now the United States of America. The years immediately after World War I brought a highly vocal rebellion against established socia...

(Encyclopedia)  CE5 Somalia sōmäˈleə [key], officially Federal Republic of Somalia, country (2015 est. pop. 10,616,000), 246,200 sq mi (637,657 sq km), extreme E Africa. It is directly south of the Arabian pen...

(Encyclopedia)  CE5 Vietnam vēĕtˈnäm [key], officially Socialist Republic of Vietnam, republic (2015 est. pop. 93,572,000), 128,400 sq mi (332,642 sq km), Southeast Asia. Occupying the eastern coastline of the...

(Encyclopedia)  CE5 Lebanon lĕbˈənən, –nŏnˌ [key], officially Lebanese Republic, republic (2015 est. pop. 5,851,000), 4,015 sq mi (10,400 sq km), SW Asia. The country is bordered on the west by the Mediter...

(Encyclopedia) Republican party, American political party. In 1980, the conservative Ronald Reagan, a former supporter of Barry Goldwater, regained the presidency for the Republicans and reversed long-standi...

(Encyclopedia)  CE5 Africa ăfˈrĭkə [key], second largest continent (2015 est. pop. 1,194,370,000), c.11,677,240 sq mi (30,244,050 sq km) including adjacent islands. Broad to the north (c.4,600 mi/7,400 km wide...

(Encyclopedia)  CE5 Zimbabwe zimˈbäbwā [key], officially Republic of Zimbabwe, republic (2015 est. pop. 14,229,000), 150,803 sq mi (390,580 sq km), S central Africa. It is bordered on the north by Zambia, on th...

(Encyclopedia)  CE5 Moon mission assembly CE5 Stages in a moon mission shown counterclockwise from launching on the first day to splashdown on the ninth day. space exploration, the investigation of physical co...