Which country was most successful in exploiting the new world for gold and silver?

What is zinn's approach to the study of history? what does he suggest occurs when history is told is the story of human progress?

According to robert kennedy, how might the historian see 1962a. as a year of resistance by the southb. as a year of great progress in civil rightsc. as a year of rioting and violenced. as a year of resegregation

Atex imposed on imported or exported goodies is called a