A. Charles Darwin
Darwin suggested that a sneer retains elements of baring one's teeth so as to threaten predators.
 
        
             
        
        
        
I think your missing something that goes with the question? 
 
        
                    
             
        
        
        
Calvins doctrines and theology created profound changes within the fledgling protestants churches.
        
             
        
        
        
The 24th  <span>Amendment </span>ended poll tax. so voters that didn't have much money could vote now.