PBS
Pbs: Aia: William Scarborough: Why Were the Native Americans Removed?
A discussion by Dr. William Scarborough about the migration into Alabama and Mississippi after the War of 1812. Whites not only displaced the Indians, but also eventually brought in thousands of slaves.
Khan Academy
Khan Academy: Us History: 1800 1848: The Cotton Kingdom
During the first half of the nineteenth century, demand for cotton led to the expansion of plantation slavery. By 1850, enslaved people were growing cotton from South Carolina to Texas.