Bleeding Kansas refers to the border war between Pro-Slavery and Anti-Slavery citizens. It took place on the Kansas/Missouri border.
        
                    
             
        
        
        
Early in the 20th Century, jazz music became very popular. It has its roots in New Orleans when African Americans first started playing it before it traveled up to Chicago and Harlem in New York. 
        
                    
             
        
        
        
The second industrial revolution resulted in better government