Sept. 24, 1957 is such an important date in history because that was the day President Dwight D. Eisenhower ordered<span> units of U.S. Army’s 101st Airborne Division to escort nine black students, nicknamed the </span>"Little Rock Nine,"<span> into the previously all white </span>Central High School in Little Rock Arkansas<span>. </span>
        
             
        
        
        
Answer:
cooperation is the act of working together to achieve a common goal
 
        
                    
             
        
        
        
Answer:
Ok so in 1519, Moctezuma II welcomed the Spanish.
In 1520, Cortes brought smallpox.
Also in 1519, Cortes won and established alliances with enemies of the Aztecs.
Again, In 1519, Cortes marched up the coast of Mexico.
Explanation:
So, on November 1519 Moctezuma.
August 1519, He won the battle against  enemies of the Aztecs.
In Veracruz, he won the battle in March.
The order is:
D, C, A, and B
Hope it helped!
 
        
             
        
        
        
The answer would be A. American Revolution.