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American Federation of Teachers

(Encyclopedia)American Federation of Teachers (AFT), an affiliate of the AFL-CIO. It was formed (1916) out of the belief that the organizing of teachers should follow the model of a labor union, rather than that of...

riot, rout, and unlawful assembly

(Encyclopedia)riot, rout, and unlawful assembly, in law, varying degrees of concerted disturbance of the peace. At common law, an unlawful assembly is a gathering of at least three persons whose conduct causes obse...

Narva, river, Estonia and Russia

(Encyclopedia)Narva, river, c.50 mi (80 km) long, rising in Lake Peipus (Chudskoye), E Estonia, and flowing northeast past the city of Narva into the Gulf of Finland. It forms the border between Estonia and Russia....

Saint Olaf College

(Encyclopedia)Saint Olaf College, at Northfield, Minn.; Lutheran; coeducational; founded 1874 by Norwegians as a school, became a college 1886, chartered 1889. It offers special programs on Scandinavian culture and...

centripetal force and centrifugal force

(Encyclopedia)CE5 Centripetal and centrifugal forces: When a ball is swung in a circle at the end of a string, centripetal and centrifugal forces act as shown above. centripetal force and centrifugal force, act...

Paraguay, river, Brazil and Paraguay

(Encyclopedia)Paraguay, river, c.1,300 mi (2,090 km) long, rising in the highlands of central Mato Grosso state, Brazil. Flowing generally southward, it forms the border between Brazil and Paraguay in the pantanal,...

National Parks and Monuments (table)

(Encyclopedia)National Parks and Monuments 1 National Parks and Monuments National Monuments National and International Historic Sites and Historical Parks National Memorials National Battlef...

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