Use the quote below to answer the question.
my friends . . circumstances that cannot be controlled, and which are beyond the reach of human laws, render it impossible that you can flourish in the midst of a civilized community. you
have but one remedy within your reach. and that is, to remove to the west and join your countrymen, who are already established there. and the sooner you do this, the sooner you will commence your career of improvement and prosperity.
—andrew jackson, 1835

the above statement is most closely associated with what action during the 19th century?