What was the difference in educational opportunity for African Americans before and after Plessy v. Ferguson (1896)? (Site 2)

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?

What from the columbian exchange had perhaps the biggest impact on the world?

The factory system of the early-19th century caused a) a decrease in farm production. b) an increase in rural population. c) an increase in urban population. d) high unemployment in other areas.