• 10 Videos, Slides, Films

• 10 Social evolution
• 10 Social structure
• 10 Tribes
• 6 Cultural geography
• 6 Population
• 6 Social ecology
• 6 Technology and civilization
• 3 Archaeology
• 3 Celts
• 2 Celtic antiquities
• 2 History
• 1 Computers
• 1 Families
• 1 Human sacrifice
• 1 Kinship
• 1 Mochica Indians
• 1 Rites and ceremonies
• 1 Robotics
• 1 Women

• 10 Films Media Group
• 10 Films for the Humanities & Sciences (Firm)
• 9 Parthenon Entertainment (Firm)
• 1 National Geographic Television & Film

• 10 English

• 1 Peru

• 10 Educational films
• 10 Internet videos

Limit year range