• 15 Videos, Slides, Films

• 12 History
• 5 Industries
• 4 Power (Social sciences)
• 4 Territorial expansion
• 3 Immigrants
• 3 Labor
• 3 Politics and government
• 2 Economic history
• 2 Railroads
• 2 Reconstruction (U.S. history, 1865-1877)
• 2 World War, 1939-1945
• 1 Automobiles
• 1 Cotton
• 1 Democracy
• 1 Depressions
• 1 Economic aspects
• 1 Economic policy
• 1 Indians of North America
• 1 Lincoln, Abraham, 1809-1865
• 1 Logging
• 1 New Deal, 1933-1939
• 1 Pearl Harbor (Hawaii), Attack on, 1941
• 1 Petroleum industry and trade
• 1 Pioneers

• 8 Films Media Group
• 8 Films for the Humanities & Sciences (Firm)
• 7 History Channel (Television network)
• 6 Nutopia (Firm)
• 5 Schreiber, Liev
• 2 Ash, Jenny
• 2 Infobase
• 1 Ackroyd, David
• 1 Alexander Street Press
• 1 Bartlett, Renny
• 1 Beavan, Clare
• 1 Chater, Andrew
• 1 Milne, Marion
• 1 New Video Group
• 1 Webb, Danny

• 15 English

• 15 United States
• 1 Erie Canal (N.Y.)
• 1 Great Plains

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