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Green River

(Encyclopedia)Green River. 1 River, 370 mi (595 km) long, rising in central Ky. and flowing generally NW, through Mammoth Cave National Park, to the Ohio River near Evansville, Ind. Locks and dams make the Green Ri...

Philadelphia Orchestra

(Encyclopedia)Philadelphia Orchestra, founded 1900 by Fritz Scheel, who was its conductor until his death in 1907. Scheel was followed by Karl Pohlig (1907–12). Under the leadership (1912–38) of Leopold Stokows...

Catamarca

(Encyclopedia)Catamarca kätämärˈkä [key], city, capital of Catamarca prov., NW Argentina. It is an agr...

Lüneburg

(Encyclopedia)Lüneburg lüˈnəbo͝orgər hīˈdə [key], a vast heath, SW of Lüneburg, lies between the Elbe and Aller rivers. It is a sandy region; sheep are raised and petroleum is produced. Parts of the heath...

Archaebacteria

(Encyclopedia)Archaebacteria ärˌkēbăktĭrˈēə [key], diverse group of bacteria (prokaryotes), sometimes called the archaea and considered a major group unto themselves. Archaebacteria are contrasted with the ...

National Guard

(Encyclopedia)National Guard, U.S. militia. The militia is authorized by the Constitution of the United States, which also defines the militia's functions and the federal and state role. Article 1, Section 8 provid...

National Mall

(Encyclopedia)National Mall: see National Parks and Monuments (table)national parks and monuments (table). ...

National Road

(Encyclopedia)National Road, U.S. highway built in the early 19th cent. At the time of its construction, the National Road was the most ambitious road-building project ever undertaken in the United States. It final...

National Socialism

(Encyclopedia)National Socialism or Nazism, doctrines and policies of the National Socialist German Workers' party, which ruled Germany under Adolf Hitler from 1933 to 1945. In German the party name was Nationalsoz...

National Trust

(Encyclopedia)National Trust, British association to preserve for the nation places of natural beauty or buildings of architectural or historic interest in the British Isles; founded 1894, chartered 1895. By act of...