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Caño Cristales
(Encyclopedia)Caño Cristales, river, c.62 mi (100 km) long, central Colombia, rising in Serranía de la Macarena National Park and flowing SE to the Guayabero River. Also known as the “River of Five Colors” or...tourmaline
(Encyclopedia)tourmaline to͝orˈməlĭn, –lēn [key], complex borosilicate mineral with varying amounts of aluminum, iron, magnesium, sodium, lithium, potassium, and sometimes other elements, used as a gem. It o...Henry I, king of France
(Encyclopedia)Henry I, c.1008–1060, king of France (1031–60), son and successor of King Robert II. To defend his throne against his mother, his brothers Robert and Eudes, and subsequently against the count of B...corundum
(Encyclopedia)corundum kərŭnˈdəm [key], mineral, aluminum oxide, Al2O3. The clear varieties are used as gems and the opaque as abrasive materials. Corundum occurs in crystals of the hexagonal system and in mass...Green Mountain Boys
(Encyclopedia)Green Mountain Boys, popular name of armed bands formed (c.1770) under the auspices of Ethan Allen in the Green Mountains of what is today Vermont. Their purpose was to prevent the New Hampshire Grant...Cogswell, Joseph Green
(Encyclopedia)Cogswell, Joseph Green kŏgzˈwĕl, –wəl [key], 1786–1871, American librarian and bibliographer, b. Ipswich, Mass. After studying abroad, Cogswell taught mineralogy and geology at Harvard and bec...Fox, river, United States
(Encyclopedia)Fox, river, 176 mi (283 km) long, rising in S central Wis. and flowing SW to within 1.5 mi (2.4 km) of Portage, Wis., on the Wisconsin River, then NE through Lake Winnebago into Green Bay, an arm of L...Gloucester, Robert, earl of
(Encyclopedia)Gloucester, Robert, earl of, d. 1147, English nobleman; illegitimate son of Henry I. Henry created (c.1121) the earldom of Gloucester for him. After his father's death (1135), Robert appeared to accep...Indiana, Robert
(Encyclopedia)Indiana, Robert ĭnˌdē-ănˈə [key], 1928–2018, American pop artist, b. New Castle, Ind., as Robert Clark. A leading figure in the pop art movement of the 1960s, he specialized in making signs in...Robert of Courtenay
(Encyclopedia)Robert of Courtenay kôrtˈnē, ko͝ortənāˈ [key], d. 1228, Latin emperor of Constantinople (1218–28). His father, Peter of Courtenay, was elected by the Latin nobles to succeed Henry of Flanders...Browse by Subject
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