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Buchanan, James

(Encyclopedia)Buchanan, James, 1791–1868, 15th President of the United States (1857–61), b. near Mercersburg, Pa., grad. Dickinson College, 1809. Buchanan was nominated as a Democratic candidate for the pres...

Tillman, Benjamin Ryan

(Encyclopedia)Tillman, Benjamin Ryan, 1847–1918, U.S. Senator from South Carolina (1895–1918), b. Edgefield co., S.C. A farmer, he became the leader of the backcountry whites in South Carolina and fostered thei...

Durham, city, United States

(Encyclopedia)Durham dûrˈăm [key], city (2020 pop. 324,833), seat of Durham co., N central N.C., in the ...

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...

china clay

(Encyclopedia)china clay, one of the purest of the clays, composed chiefly of the mineral kaolinite usually formed when granite is changed by hydrothermal metamorphism. Usage of the terms china clay and kaolin is n...

graphite

(Encyclopedia)graphite grăfˈīt [key], an allotropic form of carbon, known also as plumbago and black lead. It is dark gray or black, crystalline (often in the form of slippery scales), greasy, and soft, with a m...

National Marine Sanctuary Program

(Encyclopedia)National Marine Sanctuary Program, federally owned marine and Great Lakes reserves, administered by the National Oceanic and Atmospheric Administration (NOAA). The program consists of 13 marine sanctu...

box turtle

(Encyclopedia)box turtle, hard-shelled land turtle of the genus Terrapene, native to North America. Its lower shell, or plastron, has a hinge dividing it into front and rear sections; the animal can raise these sec...

Spangenberg, August Gottlieb

(Encyclopedia)Spangenberg, August Gottlieb ouˈgo͝ost gôtˈlēp shpängˈənbĕrk [key], 1704–92, a bishop of the Moravian Church and a founder of that church in America, b. Prussia. While at the Univ. of Jena,...

Rhodes, James Ford

(Encyclopedia)Rhodes, James Ford rōdz [key], 1848–1927, American historian, b. Ohio City (now part of Cleveland). While studying in Europe he visited ironworks and steelworks in Germany and Great Britain, and up...