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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...police
(Encyclopedia)police, public and private agents concerned with the enforcement of law, order, and public protection. In modern cities their duties cover a wide range of activities, from criminal investigation and a...Jim Crow laws
(Encyclopedia)Jim Crow laws, in U.S. history, statutes enacted by Southern states and municipalities, beginning in the 1880s, that legalized segregation between blacks and whites. The name is believed to be derived...Chouteau
(Encyclopedia)Chouteau sho͞otōˈ [key], family of American fur traders. René Auguste Chouteau, 1749–1829, b. New Orleans, accompanied (1763) his stepfather, Pierre Laclede, on a trading expedition to the Illin...Carson, Kit
(Encyclopedia)Carson, Kit (Christopher Houston Carson), 1809–68, American frontiersman and guide, b. Madison co., Ky. In 1811 he moved with his family to the Missouri frontier. After his father's death, he was ap...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...La Salle, Robert Cavelier, sieur de
(Encyclopedia)La Salle, Robert Cavelier, sieur de rōbĕrˈ kävəlyāˈ syör də lä sälˈ [key], 1643–87, French explorer in North America, one of the most celebrated explorers and builders of New France. He ...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...Oklahoma
(Encyclopedia) CE5 Oklahoma ōkləhōˈmə [key], state in SW United States. It is bordered by Missouri and Arkansas (E); Texas, partially across the Red River (S, W); New Mexico, across the narrow edge of the Ok...sodium chloride
(Encyclopedia)sodium chloride, NaCl, common salt. Salt is important in many ways. It is an essential part of the diet of both humans and animals and is a part of most animal fluids, such as blood, sweat, and te...Browse by Subject
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