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Hopper, Grace

(Encyclopedia)Hopper, Grace, 1906–92, American computer scientist, b. New York City as Grace Brewster Murray. She was educated at Vassar College and Yale (Ph.D., 1934). After teaching at Vassar (1931–1943), she...

Marc, Franz

(Encyclopedia)Marc, Franz fränts märk [key], 1880–1916, German painter. Influenced by August Macke, he developed a rich, chromatic symbolism. He depicted a mystical world of animals, especially horses, employin...

Mason-Dixon Line

(Encyclopedia)Mason-Dixon Line, boundary between Pennsylvania and Maryland (running between lat. 39°43′26.3″N and lat. 39°43′17.6″N), surveyed by the English team of Charles Mason, a mathematician and ast...

Strauss, David Friedrich

(Encyclopedia)Strauss, David Friedrich däˈvēt frēˈdrĭkh shtrous [key], 1808–74, German theologian and philosopher. In Berlin he studied (1831–32) Hegelian philosophy. As tutor at Tübingen he lectured on ...

Simnel, Lambert

(Encyclopedia)Simnel, Lambert sĭmˈnəl [key], c.1475–1525, imposter and pretender to the English throne. Little is known of his early life, but before 1486 he caught the attention of an Oxford priest, Richard S...

Hohenzollern, German princely family

(Encyclopedia)Hohenzollern hōˌən-tsôlˈərn [key], German princely family that ruled Brandenburg (1415–1918), Prussia (1525–1918), and Germany (1871–1918). Originating in S Germany and traceable to the 11...

Donatello

(Encyclopedia)Donatello dŏnətĕlˈō, Ital. dōnätĕlˈlō [key], c.1386–1466, Italian sculptor, major innovator in Renaissance art, b. Florence. His full name was Donato di Niccolò di Betto Bardi. In his for...

Mississippi, river, United States

(Encyclopedia)Mississippi, river, principal river of the United States, c.2,350 mi (3,780 km) long, exceeded in length only by the Missouri, the chief of its numerous tributaries. The combined Missouri-Mississippi ...

Huntington, Collis Potter

(Encyclopedia)Huntington, Collis Potter, 1821–1900, American railroad builder, b. near Torrington, Conn. A storekeeper of Oneonta, N.Y., before he went West in the gold rush of 1849, he became a storekeeper in Ca...

John Maurice of Nassau

(Encyclopedia)John Maurice of Nassau, 1604–79, Dutch general and colonial administrator, a prince of the house of Nassau-Siegen; grandnephew of William the Silent. The Dutch West India Company appointed him (1636...