Extras
    
Justin, an African-American high-school student, helps discover the origins of a bell at his school.
          
          
            
                
                    
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                    S1
                
            
            
                
                  E1
                
            
            
                
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                  4:43
                
            
          
        Thoreau’s book "Walden" sheds light on the history of slavery in Concord, Massachusetts.
          
          
            
                
                    
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                    S1
                
            
            
                
                  E1
                
            
            
                
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                  4:10
                
            
          
        This film reveals how slavery in the North was brought back into focus since the Bicentennial.
          
          
            
                
                    
                        Episode:
                    
                
            
            
                
                    S1
                
            
            
                
                  E1
                
            
            
                
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                  56:11