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Yellowstone National Park

(Encyclopedia)Yellowstone National Park, 2,219,791 acres (899,015 hectares), the world's first national park (est. 1872), NW Wyo., extending into Montana and Idaho. It lies mainly on a broad plateau in the Rocky Mt...

Borglum, Gutzon

(Encyclopedia)Borglum, Gutzon (John Gutzon de la Mothe Borglum) gŭtˈsən dĕ lˈə mät bôrˈgləm [key], 1867–1941, American sculptor, b. Idaho; son of a Danish immigrant physician and rancher. He studied at ...

term limits

(Encyclopedia)term limits, statutory limitations placed on the number of terms officeholders may serve. Focusing especially on members of the U.S. Congress, term limits became an important national political issue ...

Harrisburg

(Encyclopedia)Harrisburg. <1> City (2020 pop. 8,219), seat of Saline co., SE Ill; founded c. 1852. In the mid-19th century, it was a center of woolen and ...

militia

(Encyclopedia)militia məlĭshˈə [key], military organization composed of citizens enrolled and trained for service in times of national emergency. Its ranks may be filled either by enlistment or conscription. An...

Darrow, Clarence Seward

(Encyclopedia)Darrow, Clarence Seward, 1857–1938, American lawyer, b. Kinsman, Ohio. He first practiced law in Ashtabula, Ohio. In 1887 he moved to Chicago, where he was corporation counsel for several years and ...

Great Migration

(Encyclopedia)Great Migration, in U.S. history. 1 The migration of Puritans to New England from England, 1620–40, prior to the English civil war. As a result of the increasingly tyrannical rule of King Charles I ...

potato

(Encyclopedia)potato or white potato, common name for a perennial plant (Solanum tuberosum) of the family Solanaceae (nightshade family) and for its swollen underground stem, a tuber, which is one of the most widel...

Miocene epoch

(Encyclopedia)Miocene epoch mīˈəsēn [key], fourth epoch of the Tertiary period in the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), lasting from around 24.6 to 5.1 mill...

silver

(Encyclopedia)silver, metallic chemical element; symbol Ag [Lat. argentum]; at. no. 47; at. wt. 107.8682; m.p. 961.93℃; b.p. 2,212℃; sp. gr. 10.5 at 20℃; valence +1 or +2. Pure silver is nearly white, lustrou...