1820
Recorded number of enslaved people by county
30,000
1
3,000
8,000
800
5,000
13,000
No data
Non-US
territory
US state/territory
borders in 1820
New Orleans
Centre of a vast internal slave trade, and a key source of Lancashire’s cotton
1820
Recorded number of enslaved people by county
30,000
No data
1
3,000
8,000
800
5,000
13,000
Non-US territory
US state/territory
borders in 1820
New Orleans
Centre of a vast internal slave trade, and a key source of Lancashire’s cotton