Explanation:
Significance. The barbarian kingdoms marked the transition from Late Antiquity to the Early Middle Ages in the 6th and 7th centuries, gradually replacing the Roman system of government on the lands of the Western Roman Empire, notably in the two western prefectures of Gaul and Italy.
 
        
                    
             
        
        
        
Answer:
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Explanation:
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The correct answer to this open question is the following
I think the Industrial Revolution led to the rapid growth of cities in the northeastern states because in this region were located the big factories and fabrics that introduced mass production as their form to produce goods. 
Many people from the south. who lived in the rural areas of that region, decided to move to the larger cities of the northeast precisely to get a job in the fabrics. Many immigrants came to the United States to work in factories, They came from Europe and Asia. They went to New York or Chicago, and many other cities.
Of course, the population grew and these workers, as they were poor, they had to live in poor overcrowded spaces with no ventilation at all and where disease spread quickly and easily. 
 
        
             
        
        
        
Answer:
Great Britain, Russia, France, and Spain
Explanation:
 But the US claimed it 
 
        
             
        
        
        
Answer:
Some had their passports taken away, while others were jailed for refusing to give the names of other communists and others were blacklisted.
Hope that helps!