Answer:
It ruled against Dred Scott and set aside the Missouri Compromise and popular sovereignty.
Explanation:
The case Dred Scott v. Sanford argued whether a slave can obtain his freedom when he step on a state that make slavery illegal.
It happened in 1857. At that time, Dred Scott's (A slave) was taken by his owner from Missouri to Illinois. (According to Missouri compromise,  It is still legal to own slaves in Missouri but It is Illegal to do so in Illinois).
Scott tried to make his case to the court stating that as soon as he entered Illinois, his status as a slave should be voided and he should be considered as a citizen.
At that time, The Missouri supreme court ruled against Scott's plead. The court stated that he could never be a citizen since citizenship only apply to white people. So he's still a slave no matter where his slave owner took him.
 
        
             
        
        
        
Into many kingdoms
After the fall of Roman empire, Germanic people spread all over europe and established small kingdom that ruled over the fragment of what used to be Roman's territory.
They defined the rules that they imposed to these territories as the 'barbarian law'
 
        
             
        
        
        
Plebians were the nonaristocrats in the Roman Republic, mostly those who do not possess fields, ground. Three institutions created to protect plebeians were The Roman Gens (families that had the same appellation, nomen or forefather), The Roman Curia (the central administrative organism of the Catholic Church), and The Roman Tribes (<span>the voting units of a legislative assembly</span>). 
        
             
        
        
        
The will of the peoplethe prevailing anti-West sentimentsthe strength of the militarya signal from USSR leadership toward democracy<span>the weakness of the government
are the choices
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