Columbia Encyclopedia
Search results
500 results found
Homeland Security, United States Department of
(Encyclopedia)Homeland Security, United States Department of (DHS), executive department of the federal government charged with protecting the security of the American homeland as its main responsibility. Its prima...biological diversity
(Encyclopedia)biological diversity or biodiversity, the number of species in a given habitat. Scientists have variously estimated that there are from 3 to 30 million extant species, of which 2.5 million have been c...Puerto Rico, University of
(Encyclopedia)Puerto Rico, University of, main campus at Río Piedras, near San Juan; land-grant and commonwealth; coeducational; founded 1903 as successor to a normal school. The Río Piedras campus has faculties ...Biafra, Republic of
(Encyclopedia)Biafra, Republic of, secessionist state of W Africa, in existence from May 30, 1967, to Jan. 15, 1970. At the outset Biafra comprised, roughly, the East-Central, South-Eastern, and Rivers states of th...Agency for International Development
(Encyclopedia)Agency for International Development (AID), federal agency created (Sept., 1961) to consolidate U.S. nonmilitary foreign aid programs. Originally an agency in the State Department, it has been a compo...Edinburgh, Prince Philip Mountbatten, duke of
(Encyclopedia)Edinburgh, Prince Philip Mountbatten, duke of ĕdˈĭnbərə [key], 1921–2021, consort ...Burnham, Forbes
(Encyclopedia)Burnham, Forbes, 1923–85, prime minister (1964–80) and president (1980–85) of Guyana, formerly British Guiana. His full name was Linden Forbes Sampson Burnham. Of African descent, he received a ...Douglas, city, Isle of Man
(Encyclopedia)Douglas, city, capital of the Isle of Man, Great Britain. It is a popular resort, connected by rail to Ramsey and Port Erin, on the Irish Sea. Tourism i...toxic waste
(Encyclopedia)toxic waste is waste material, often in chemical form, that can cause death or injury to living creatures. It usually is the product of industry or commerce, but comes also from residential use, agric...land
(Encyclopedia)land, in law, any ground, soil, or earth regarded as the subject of ownership, including trees, water, buildings added by humans, the air above, and the earth below. Private ownership of land does not...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
- Places +-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-
