Pre-Civil War African-American Slavery - Library of Congress
https://www.loc.gov/classroom-materials/united-states-history-primary-source-timeline/national-expansion-and-reform-1815-1880/pre-civil-war-african-american-slavery/
Web ResultBy 1800 or so, however, slavery was once again a thriving institution, especially in the Southern United States. One of the primary reasons for the reinvigoration of slavery was the invention and rapid widespread adoption of the cotton gin.
DA: 80 PA: 91 MOZ Rank: 66