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Santa Fe Opera

(Encyclopedia)Santa Fe Opera, summer opera festival held outside Santa Fe, N. Mex., founded 1957. Featuring outstanding young singers and musicians, it presents a wide variety of operas from the standard repertory ...

Sloan, Alfred Pritchard, Jr.

(Encyclopedia)Sloan, Alfred Pritchard, Jr., 1875–1966, American businessman and philanthropist, b. New Haven, Conn., grad. Massachusetts Institute of Technology, 1895. He began his career as a draftsman for the H...

Centennial Exhibition, International

(Encyclopedia)Centennial Exhibition, International, held in Philadelphia from May to Nov., 1876, to celebrate the 100th anniversary of the Declaration of Independence. The buildings, in Fairmount Park, included the...

Bermuda grass

(Encyclopedia)Bermuda grass, perennial pasture, lawn, and hay grass (Cynodon dactylon) of the family Poaceae (grass family), native to Africa and Asia and now common in warm regions of both hemispheres. It is the s...

hallmark

(Encyclopedia)hallmark, mark impressed on silverwork or goldwork to signify official approval of the standard of purity of the metal, also called plate mark. The hallmark was introduced by statute in England in 130...

Jackson, Samuel Macauley

(Encyclopedia)Jackson, Samuel Macauley, 1851–1912, American Presbyterian clergyman and encyclopedist, b. New York City. He was associate editor in the preparation of the original Schaff-Herzog Encyclopedia (1884)...

Fibonacci, Leonardo

(Encyclopedia)Fibonacci, Leonardo lāōnärˈdō fēbōnätˈchē [key], b. c.1170, d. after 1240, Italian mathematician, known also as Leonardo da Pisa. In Liber abaci (1202, 2d ed. 1228), for centuries a standard...

Bamberger, Ludwig

(Encyclopedia)Bamberger, Ludwig lo͞otˈvĭkh bämˈbĕrgər [key], 1823–99, German economist, politician, and journalist. An ardent liberal, he took part in the Revolution of 1848 and was forced to live in exile...

Brahmagupta

(Encyclopedia)Brahmagupta bräˌməgo͝opˈtə [key], c.598–c.660, Indian mathematician and astronomer. He was among the first to meaningfully discuss the concepts of zero and of negative numbers. He wrote in ver...

Sloane, T(homas) O'Conor

(Encyclopedia)Sloane, T(homas) O'Conor, 1851–1940, American scientist, lecturer, writer, and periodical editor, Ph.D. Columbia, 1876. Sloane was a member of the editorial staff of the Scientific American, where h...