• 5 History
• 2 Civics
• 2 Commerce
• 2 Economic conditions
• 2 Political science
• 2 Power (Social sciences)
• 2 Sociology
• 2 Territorial expansion
• 1 Discovery and exploration
• 1 Education

• 5 Films Media Group
• 3 Films for the Humanities & Sciences (Firm)
• 2 Infobase
• 2 Public Broadcasting Service (U.S.)
• 1 National Geographic Television & Film
• 1 PBS (Firm)
• 1 Pug Media Productions, LLC (Firm)

• 4 United States
• 2 U.S. states
• 1 West (U.S.)

• 4 Video recordings for the hearing impaired
• 3 Educational films
• 3 Videorecording

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