• 25 Videos, Slides, Films

• 23 Territorial expansion
• 21 History
• 18 Commerce
• 4 Indians of North America
• 3 Immigrants
• 3 Labor
• 3 Politics and government
• 2 African Americans
• 2 Emigration and immigration
• 2 Imperialism
• 2 Industrialization
• 2 Religions
• 1 Christianity
• 1 Civil law
• 1 Courts
• 1 Criminal law
• 1 Culture conflict
• 1 Democracy
• 1 Developing countries
• 1 Deviant behavior
• 1 Economic geography
• 1 Ethnicity
• 1 Gold miners

• 25 Films Media Group
• 8 Public Broadcasting Service (U.S.)
• 6 Infobase
• 5 KERA Dallas/Ft. Worth (Television station)
• 4 Arts and Entertainment Network
• 3 A&E Television Networks, LLC
• 1 ABC News Productions
• 1 Burns, Ken, 1953-
• 1 MacNeil/Lehrer Productions
• 1 Marshall University
• 1 Sideways Film

• 25 English

• 24 United States
• 2 West (U.S.)
• 1 Developing countries
• 1 New York (N.Y.)
• 1 Pleasant Hill (Ky.)
• 1 San Antonio, Texas

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