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Arlington National Cemetery

(Encyclopedia)Arlington National Cemetery, 420 acres (170 hectares), N Va., across the Potomac River from Washington, D.C.; est. 1864. More than 60,000 American war dead, as well as notables including Presidents Wi...

Argonne National Laboratory

(Encyclopedia)Argonne National Laboratory, research center, based in Argonne, Ill., 27 mi (43 km) SW of downtown Chicago, with other facilities at the Idaho National Engineering Laboratory, 50 mi (80 km) W of Idaho...

Tupelo National Battlefield

(Encyclopedia)Tupelo National Battlefield: see Tupelo, Miss.; National Parks and Monuments (table)national parks and monuments (table). ...

Tuzigoot National Monument

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

Wupatki National Monument

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

Cabrillo National Monument

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

Buffalo National River

(Encyclopedia)Buffalo National River, Ark.: see National Parks and Monuments (table)national parks and monuments (table). ...

African National Congress

(Encyclopedia)African National Congress (ANC), the oldest black (now multiracial) political organization in South Africa; founded in 1912. Prominent in its opposition to apartheid, the organization began as a nonvi...

Brookhaven National Laboratory

(Encyclopedia)Brookhaven National Laboratory, scientific research center, at Upton (town of Brookhaven), Long Island, N.Y. It was founded in 1947 by Associated Universities, a management corporation sponsored by ni...

Stonewall National Monument

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