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American Federation of Labor and Congress of Industrial Organizations
(Encyclopedia)American Federation of Labor and Congress of Industrial Organizations (AFL-CIO), a federation of autonomous labor unions in the United States, Canada, Mexico, Panama, and U.S. dependencies, formed in ...metallurgy
(Encyclopedia)metallurgy mĕtˈəlûrˌjē [key], science and technology of metals and their alloys. Modern metallurgical research is concerned with the preparation of radioactive metals, with obtaining metals econ...Jacobites
(Encyclopedia)Jacobites jăkˈəbītsˌ [key], adherents of the exiled branch of the house of Stuart who sought to restore James II and his descendants to the English and Scottish thrones after the Glorious Revolut...Whitman, Walt
(Encyclopedia)Whitman, Walt (Walter Whitman), 1819–92, American poet, b. West Hills, N.Y. Considered by many to be the greatest of all American poets, Walt Whitman celebrated the freedom and dignity of the indivi...ballad
(Encyclopedia)ballad, in literature and music, short, narrative poem or song usually relating a single, dramatic event. Two forms of the ballad are often distinguished—the folk ballad, dating from about the 12th ...Jefferson, Thomas
(Encyclopedia)Jefferson, Thomas, 1743–1826, 3d President of the United States (1801–9), author of the Declaration of Independence, and apostle of agrarian democracy. After 1809, Jefferson lived in retirem...alien
(Encyclopedia)alien, in law, any person residing in one political community while owing allegiance to another. A procedure known as naturalization permits aliens to become citizens. Each nation establishes conditio...immigration
(Encyclopedia)immigration, entrance of a person (an alien) into a new country for the purpose of establishing permanent residence. Motives for immigration, like those for migration generally, are often economic, al...mass extinction
(Encyclopedia)mass extinction, the extinction of a large percentage of the earth's species, opening ecological niches for other species to fill. There have been at least ten such events. The five greatest were thos...Cuba
(Encyclopedia)CE5 Cuba kyo͞oˈbə, Span. ko͞oˈbä [key], officially Republic of Cuba, republic (2020 est. pop. 11,326,616), ...Browse by Subject
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