The area was settled predominately by planters from the Southern United States, who developed this area for cotton plantations and brought enslaved African Americans with them for labor, or purchased them at regional markets. The planters repeated much of their culture and society here. East Texas was the location of most of the cotton plantations in the state and, correspondingly, of most of the enslaved African Americans. Most of the fourteen black-majority, plantation counties were located here. By 1850, landowners in Harrison County held more slaves than in any other county in Texas until the end of the Civil War. The census of 1860 counted 8,746 slaves in Harrison County, 59% of the county's total population.