After fighting the war in Korea, the US had learned that communism would spread. In order to keep with their policy of containment, they had to rush in and stop Viet Cong from spreading communism (much like the domino theory that the US had). Had Viet Cong not wanted to bring about communism, there would be no need for invasion, and the domino theory would have yet to be proven.
It would be in "D. Haiti" that slavery ended with revolution than by government decree, since this was the result of a massive slave uprising that ended up ultimately being successful.
It was founded in 1325 and served as the capital until the Aztecs were conquered by Spanish conquistador Hernan Cortes in 1520..Tenochtitlán was an Aztec city
