I pretty shure its vicksburg
        
             
        
        
        
Answer:Emergency Quota Law of 1921
In 1921, there was a drastic reduction in immigration levels from other countries, principally Southern and Eastern Europe.
Explanation:
Long title	An Act to limit the immigration of aliens into the United States.
Nicknames	Per Centum Limit Act
Enacted by	the 67th United States Congress
Effective	May 19, 1921
 
        
             
        
        
        
Pioneer settlers were sometimes pulled west<span> because they wanted to make a better living. Others received letters from friends or family members who had </span>moved west<span>. These letters often told about a good life on the frontier. The biggest factor that pulled </span>pioneers west was the opportunity to buy land. On their journeys which were thousands of miles, they encountered disease, treacherous roads and enemies.<span> Traveling rough roads in covered wagons often resulted in death from failed river crossings, accidents or Indian attacks.</span>
        
             
        
        
        
C - They had a rivalry during that time
 
        
             
        
        
        
They were attempting to end the debate over slavery