1851: Congress creates reservations to manage Native peoples. The U.S. Congress passes the Indian Appropriations Act, creating the reservation system. The government forces Native peoples to move to and live on reservations, where it can better subdue them.
In the story of Oedipus he was given a prophecy saying that he would kill his father and marry his mother. And in the end of the story he does end up killing his father and marrying his mother. This is foreshadowing, a clue or event that has happened before that tells of an event that will happen in the future.
Spain wanted to protect its colony in Mexico from other Europeans
With the idea of the mighty Britain being overrun by a new set of colonies it influenced the French to do the same in hope of freedom