A portcullis is a heavy vertically-closing gate typically found in Medieval fortifications, consisting of a latticed grille made of wood, metal, or a combination of the two, which slides down grooves inset within each jamb of the gateway.
 
        
             
        
        
        
Yes, it is true that the <span>Ziggurat of Ur is one of the most famous ziggurats, although it should be noted that any question having to do with fame is somewhat subjective. </span>
        
                    
             
        
        
        
Alfred Thayer Mahan was a United States naval officer, historian, and one of the most influential American authors of the nineteenth century. 
He argued that modern navies needed repair and coaling stations, which would not be dependable if controlled by other nations. This reasoning implied a justification for American acquisition of colonies to develop port facilities throughout the world.
 
        
             
        
        
        
Answer:
what do you think happened?
Explanation:
it should just be that i think