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mother-of-pearl

(Encyclopedia)mother-of-pearl or nacre nāˈkər [key], the iridescent substance that forms the lining of the shells of some fresh-water and some salt-water mollusks. Like the pearl it is a secretion of the mantle,...

Compromise of 1850

(Encyclopedia)Compromise of 1850. The annexation of Texas to the United States and the gain of new territory by the Treaty of Guadalupe Hidalgo at the close of the Mexican War (1848) aggravated the hostility betwee...

Cambrai, League of

(Encyclopedia)Cambrai, League of, 1508–10, alliance formed by Holy Roman Emperor Maximilian I, King Louis XII of France, Pope Julius II, King Ferdinand V of Aragón, and several Italian city-states against the re...

Rio Grande, river, United States and Mexico

(Encyclopedia)Rio Grande rēˈō grănd, rēˈō gränˈdē [key], river, c.1,885 mi (3,000 km) long, rising in SW Colo. in the San Juan Mts. and flowing south through the middle of N.Mex., past Albuquerque, then c...

Kansas, state, United States

(Encyclopedia)CE5 Kansas kănˈzəs [key], midwestern state occupying the center of the coterminous United States. It is bordered by Missouri (E), Oklahoma (S), Colorado (W), and Nebraska (N). Kansas has b...

Protectorate, in English history

(Encyclopedia)Protectorate, in English history, name given to the English government from 1653 to 1659. Following the English civil war and the execution of Charles I, England was declared (1649) a commonwealth und...

Teller, Henry Moore

(Encyclopedia)Teller, Henry Moore, 1830–1914, American statesman, b. Allegany co., N.Y. A lawyer, he practiced in Colorado after 1861. He commanded a militia district in the Civil War period. When Colorado became...

Yeltsin, Boris Nikolayevich

(Encyclopedia)Yeltsin, Boris Nikolayevich bərēsˈ nyĭkəlīˈəvĭch yĕltˈsĭn [key], 1931–2007, Soviet and Russian politician, president of Russia (1991–99). Born in Yekaterinburg (then Sverdlovsk) and ed...

Augsburg, League of

(Encyclopedia)Augsburg, League of, defensive alliance formed (1686) by Holy Roman Emperor Leopold I with various German states, including Bavaria and the Palatinate, and with Sweden and Spain so far as their German...

Portsmouth, Treaty of

(Encyclopedia)Portsmouth, Treaty of, 1905, treaty ending the Russo-Japanese War. It was signed at the Portsmouth Naval Base, New Hampshire, on Sept. 5, 1905. Negotiations leading up to the treaty began in the sprin...