It showed that the us could no longer stay in isolationism and it was to be probably the biggest influence in international affairs. When the us won ww2 and faced off with the soviet union it also showed that the us was the biggest world superpower.
In order to help millions of former black slaves and poor whites in the South after the Civil War
The woodland period which was from 100 BCE to the time Europeans reached the eastern part of the Americas.
Salutary neglect
Salutary neglect is an American history term that refers to the seventeenth- and eighteenth-century British Crown policy of avoiding strict enforcement of parliamentary laws meant to keep American colonies obedient to England. It was informed by the believe that if the colonies were not strictly monitored they would flourish.
Yes it is possible because there are records that show that the Mayas were obsessed with war.