Their knowledge allowed them to take control of the production process and the training of apprentices.
 
        
             
        
        
        
Positive effect:
Benefited the people at the top.
A flexible system making power and decision.
Allowed stability and security.
The lord had a unique relationship with his vassals.
Created an obligation for the powerful to help and protect the weak.
Negative effect:
90% of population were were commoners or peasants.
Serfs has no say in that time.
The kings were not in direct control of all their subjects.
Relied on gaining status through work and power.
        
             
        
        
        
Nah foo I didn't watch the video how am I supposed to describe it?
        
                    
             
        
        
        
Answer:
Megalithic
Explanation:
relating to or denoting prehistoric monuments made of or containing large stones.