Rivers/streams, cotton, and slave labor
        
             
        
        
        
 
Britain and russia and i think french but not sure bout that one
 
 
        
             
        
        
        
A series of major military efforts by the Mongols to invade China. was 6 decades in the 13th century. defeat of the Jin dynasty, Western Xia, the Dali Kingdom and the Southern Song. led by Genghis khan
        
             
        
        
        
They had to remember over 500 letters and English phrases for example
FLAMETHROWER meant TANK
        
             
        
        
        
<span>  I found out that Vasco da Gama that they had claimed land in South America for Portugal and that resulted in use of Portuguese in Brazil </span>