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earth, in geology and astronomy
(Encyclopedia) CE5 A. Cross section of the earth, showing its shells B. Detailed cross section of the crust and upper mantle: The lithosphere consists of the hard rock in the crust and upper mantle, lying above t...Persian Gulf Wars
(Encyclopedia)Persian Gulf Wars, two conflicts involving Iraq and U.S.-led coalitions in the late 20th and early 21st cent. The First Persian Gulf War, also known as the Gulf War, Jan.–Feb., 1991, was an armed co...Old Testament
(Encyclopedia)Old Testament, Christian name for the Hebrew Bible, which serves as the first division of the Christian Bible (see New Testament). The designations “Old” and “New” seem to have been adopted af...Marxism
(Encyclopedia)Marxism, economic and political philosophy named for Karl Marx. It is also known as scientific (as opposed to utopian) socialism. Marxism has had a profound impact on contemporary culture; modern comm...health insurance
(Encyclopedia)health insurance, prepayment plan providing services or cash indemnities for medical care needed in times of illness or disability. It is effected by voluntary plans, either commercial or nonprofit, o...Vietnam War
(Encyclopedia)Vietnam War, conflict in Southeast Asia, primarily fought in South Vietnam between government forces aided by the United States and guerrilla forces aided by North Vietnam. The war began soon after th...Moldova
(Encyclopedia) CE5 Moldova məldōˈvə [key], officially Republic of Moldova, republic (2015 est. pop. 4,066,000), c.13,000 sq mi (33,670 sq km). Chişinău (formerly Kishinev) is the capital and largest city. ...El Salvador
(Encyclopedia) CE5 El Salvador ĕl sälväᵺōrˈ [key], officially Republic of El Salvador, republic (2021 est. pop. ...electricity
(Encyclopedia) CE5 Electrical and radio symbols electricity, class of phenomena arising from the existence of charge. The basic unit of charge is that on the proton or electron—the proton's charge is designate...ballet
(Encyclopedia) CE5 The five classical positions in ballet ballet bălˈā, bălāˈ [key] [Ital. ballare=to dance], classic, formalized solo or ensemble dancing of a highly controlled, dramatic nature performed ...Browse by Subject
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