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GEO151: Introduction to Early Civilizations duration 9 minutes 11 seconds GEO151: Introduction to Early Civilizations GEO151: Introduction to Early Civilizations	GEO151: Introduction to Early Civilizations This video introduces students to the material presented in the lesson, early civilizations. culture food diffusion subsystem elements religion language societies civilizations empires beliefs place lesson reasons population tools things ways agriculture period From Juliegh Bookout 77 plays 0