<span>Columbus's voyage was about the acquisition of gold and spices. He started his long voyage with the aim to find India, where he would get those two things from, however, somehow he ended up in the New World, which he thought was India, but was in fact what came to be America. Thus, mistaking America for India, he named the inhabitants of the continent Indians. </span>
Monroe Doctrine because its a new american policy.
Beginning after Columbus' discovery in 1492 the exchange lasted through the years of expansion and discovery.
