In later years, slaves were exported from the upper South to the Deep South. Blacks seeking freedom from oppression migrated from the USA to Canada, Haiti, Mexico and, most often, Africa.

Slaves in the Upper South became incredibly more valuable as commodities because of this demand for them in the Deep South. They were sold off in droves. This created a Second Middle Passage ...

For starters, many parts of the Upper South (East Tennessee, for example) did not have an extensive history of slaveholding. Plus, the economies were more diversified than in the Deep South ...