Southern states had slaves and Northern States was more about the industrial items. And even though northern states had less slaves they both had slaves. Richer soil in southern states allowed cropping which had to be farmed by slaves, weaker not good soil caused northern to use machines in others stuff so slaves where not need as much.
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The primary goal of the freemen's bureau is to give aid to newly freed African Americans in their transition from salves to free men and women.
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Africa they were strong supporters of the Pan African movement
The right option is the US dollar has become stronger. When this occurs, purchase power increases if compared to foreign goods and services, enabling US citizens to benefit from those. Certainly, tourist sites getting crowded and dirty is a risk that must counted on, perhaps not the ideal situation for anyone.