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rutherfordium

(Encyclopedia)rutherfordium rŭᵺˌərfôrˈdēəm [key], artificially produced radioactive chemical element; symbol Rf; at. no. 104; mass number of most stable isotope 265; m.p., b.p., and sp. gr. unknown; valenc...

gambling

(Encyclopedia)gambling or gaming, betting of money or valuables on, and often participation in, games of chance (some involving degrees of skill). In England and in the United States, gambling was not a common-law ...

rapid transit

(Encyclopedia)rapid transit, transportation system designed to allow passenger travel within or throughout an urban area, usually employing surface, elevated, or underground railway systems or some combination of t...

Cézanne, Paul

(Encyclopedia)Cézanne, Paul pōl sāzänˈ [key], 1839–1906, French painter, b. Aix-en-Provence. Cézanne was the leading figure in the revolution toward abstraction in modern painting. Cézanne's influence on...

Great Depression

(Encyclopedia)Great Depression, in U.S. history, the severe economic crisis generally considered to have been precipitated by the U.S. stock-market crash of 1929. Although it shared the basic characteristics of oth...

Darwin, Charles Robert

(Encyclopedia)Darwin, Charles Robert, 1809–82, English naturalist, b. Shrewsbury; grandson of Erasmus Darwin and of Josiah Wedgwood. He firmly established the theory of organic evolution known as Darwinism. He st...

Ivan IV

(Encyclopedia)Ivan IV or Ivan the Terrible, 1530–84, grand duke of Moscow (1533–84), the first Russian ruler to assume formally the title of czar. In his later years, Ivan's character, always stern, grew tyra...

Jones, John Paul

(Encyclopedia)Jones, John Paul, 1747–92, American naval hero, b. near Kirkcudbright, Scotland. His name was originally simply John Paul. After the Revolution Jones was sent to Europe to collect the prize mone...

Union Pacific Railroad

(Encyclopedia)Union Pacific Railroad, transportation company chartered (1862) by Congress to build part of the nation's first transcontinental railroad line. Under terms of the Pacific Railroads Act, the Union Paci...

Thiers, Adolphe

(Encyclopedia)Thiers, Adolphe ädôlfˈ tyĕr [key], 1797–1877, French statesman, journalist, and historian. After studying law at Aix-en-Provence, Thiers went (1821) to Paris and joined the group of writers that...