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uranium

(Encyclopedia) uraniumuraniumy&oomacr;rāˈnēəm [key], radioactive metallic chemical element; symbol U; at. no. 92; mass number of most stable isotope 238; m.p. 1,132℃; b.p. 3,818℃; sp. gr. 19.1 at…

Franco-Prussian War

(Encyclopedia) Franco-Prussian War or Franco-German War, 1870–71, conflict between France and Prussia that signaled the rise of German military power and imperialism. It was provoked by Otto von…

Costa Rica

(Encyclopedia) CE5 Costa Rica Costa Rica kŏsˈtə rēˈkə [key], officially Republic of Costa Rica, republic (2020 est…

Inventions and Discoveries

Adrenaline: (isolation of) John Jacob Abel, U.S., 1897. Aerosol can: Erik Rotheim, Norway, 1926. Air brake: George Westinghouse, U.S., 1868. Air conditioning: Willis Carrier, U.S., 1911.…

papacy

(Encyclopedia) CE5 papacypapacypāˈpəsē [key], office of the pope, head of the Roman Catholic Church. He is pope by reason of being bishop of Rome and thus, according to Roman Catholic belief,…

Bios of Artists, Painters, Sculptors, and More

  Painters, sculptors, and photographers   Read the brief and informative biographies of notable artists, from Pablo Picasso and Mary Cassatt to Vincent Van Gogh and Georgia O'Keeffe…

Notable Business Biographies

Lido Anthony “Lee” Iacocca See also Women CEOs Notable Women in Busines Asian Pacific American Business and Media Leaders People in the News Recent Obituaries Related…

Versailles, Treaty of

(Encyclopedia) Versailles, Treaty of, any of several treaties signed in the palace of Versailles, France. For the Treaty of Versailles of 1783, which ended the American Revolution, see Paris, Treaty…

espionage

(Encyclopedia) espionageespionageĕsˈpēənäzhˌ [key], the act of obtaining information clandestinely. The term applies particularly to the act of collecting military, industrial, and political data…

Triple Alliance and Triple Entente

(Encyclopedia) Triple Alliance and Triple EntenteTriple Alliance and Triple Ententeäntäntˈ [key], two international combinations of states that dominated the diplomatic history of Western Europe from…