When the thirteenth amendment abolished involuntary servitude, it became illegal to

How can you use document e and f to argue that imperialism was more important than alliances and arms build up as the underlying cause of ww1? how could you counter this argument

How have the government regulations changed the use of child labor since the 1800s

Who's idea was it for businessmen to use their wealth for the greater good of society? (gospel of wealth ~ap u.s. history