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Little Bighorn

(Encyclopedia)Little Bighorn, river, c.90 mi (145 km) long, rising in the Bighorn Mts., N Wyo., and flowing north to join the Bighorn River in S Mont. On June 25–26, 1876, Sioux and Cheyenne warriors defeated the...

Prometheus, in astronomy

(Encyclopedia)Prometheus prōmēˈthēəs [key], in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn XVI (or S16), Prometheus is an irregularly shaped (nonspherical) body me...

Northeast Canyons and Seamounts Marine National Monument

(Encyclopedia)Northeast Canyons and Seamounts Marine National Monument, 4,913 sq mi (12,725 sq km), NW Atlantic Ocean, 130 mi (210 km) off the coast of Cape Cod; est. 2016. The monument is divided into two areas; o...

Aleutian Islands World War II National Monument

(Encyclopedia)Aleutian Islands World War II National Monument: see National Parks and Monuments (table). ...

President Lincoln and Soldier's Home National Monument

(Encyclopedia)President Lincoln and Soldier's Home National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

National Academy of Sciences

(Encyclopedia)National Academy of Sciences, with headquarters in Washington, D.C., a private organization of leading American scientists and engineers devoted to the furtherance of science and its use for the gener...

National Ballet of Canada

(Encyclopedia)National Ballet of Canada, the leading Canadian ballet company. Based in Toronto, it was founded (1951) by Celia Franca (1921–2007) and modeled on Sadler's Wells (now the Royal Ballet). Its repertoi...

National Ballet of Cuba

(Encyclopedia)National Ballet of Cuba: see Alonso, Alicia. ...

National Bureau of Standards

(Encyclopedia)National Bureau of Standards: see National Institute of Standards and Technology. ...

National Gallery of Art

(Encyclopedia)National Gallery of Art, Washington, D.C., an affiliate of the Smithsonian Institution, established by an act of Congress, 1937. Andrew W. Mellon donated funds for construction of the building as well...