Columbia Encyclopedia

(Encyclopedia) Beijing pē-kĭng, pā– [key], city and independent municipality (2021 est. pop. 20,897,000), ...

(Encyclopedia)  CE5 Development of the human embryo embryo ĕmˈbrēō [key], name for the developing young of an animal or plant. In its widest definition, the embryo is the young from the moment of fertilizatio...

(Encyclopedia) water pollution, contamination of water resources by harmful wastes; see also sewerage, water supply, pollution, and environmentalism. The United States has enacted extensive federal legislation to ...

(Encyclopedia)  CE5 Panama pănˈəmäˌ [key], Span. Panamá, officially Republic of Panama, republic (2015 est. pop. 3,657,000), 29,760 sq mi (77,081 sq km), occupying the Isthmus of Panama, which connects Centr...

(Encyclopedia) geography, the science of place, i.e., the study of the surface of the earth, the location and distribution of its physical and cultural features, the areal patterns or places that they form, and the ...

(Encyclopedia) Roosevelt, Theodore, 1858–1919, 26th President of the United States (1901–9), b. New York City. Alice, his daughter by his first wife, married Nicholas Longworth in the White House; “Princ...

(Encyclopedia)  CE5 Nevada nəvădˈə, –vä– [key], far western state of the United States. It is bordered by Utah (E), Arizona (SE), California (SW, W), and Oregon and Idaho (N). In the 20th cent. the ...

(Encyclopedia) Indian wars, in American history, general term referring to the series of conflicts between Europeans and their descendants and the indigenous peoples of North America. After 1860 the wars continued...

(Encyclopedia) French and Indian Wars, 1689–1763, the name given by American historians to the North American colonial wars between Great Britain and France in the late 17th and the 18th cent. They were really cam...

(Encyclopedia) Zanzibar zănˈzĭbär, zănzĭbärˈ [key], semiautonomous archipelago (2012 pop. 1,303,569), Tanzania, E Africa, in the Indian Ocean c. 20 mi (32 km) off the mainland, consisting of the island of Za...