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National Rifle Association of America

(Encyclopedia)National Rifle Association of America (NRA), group founded (1871) to promote shooting, hunting, firearm safety, and wildlife conservation. The NRA has more than 3 million members. The association spon...

United Mine Workers of America

(Encyclopedia)United Mine Workers of America (UMW), international labor union formed (1890) by the amalgamation of the National Progressive Union (organized 1888) and the mine locals under the Knights of Labor. It ...

Saint Croix, rivers, North America

(Encyclopedia)Saint Croix. 1 River, 75 mi (121 km) long, rising in the Chiputneticook Lakes and flowing SE to Passamaquoddy Bay, forming part of the U.S.-Canada border; navigable to Calais, Maine. The river is used...

pre-Columbian art and architecture

(Encyclopedia)pre-Columbian art and architecture, works of art and structures created in Central and South America before the arrival of Europeans in the Western Hemisphere. For many years the regions that are now ...

Alberdi, Juan Bautista

(Encyclopedia)Alberdi, Juan Bautista hwän boutēsˈtä älbārˈdē [key], 1810–84, Argentine political philosopher, patriot, and diplomat. He opposed Juan Manuel de Rosas, and after 1838 he spent years of exile...

Mujica Cordano, José Alberto

(Encyclopedia)Mujica Cordano, José Alberto 1935–, Uruguayan political leader. Popularly known as “Pepe,” he had minimal formal education. During the 1960s, Mujica, a farmer and a socialist, was one of the fo...

agate

(Encyclopedia)agate ăgˈĭt [key], translucent, cryptocrystalline variety of quartz and a subvariety of chalcedony. Agates are identical in chemical structure to jasper, flint, chert, petrified wood, and tiger's-e...

Oribe, Manuel

(Encyclopedia)Oribe, Manuel mänwĕlˈ ōrēˈbā [key], d. 1857, president of Uruguay (1834–38). After serving with José Gervasio Artigas, he became one of the Thirty-three Immortals who raised the standard of ...

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...

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