A society in which all or part of its labour is done by slaves.
The Southern economy was critically dependent on slave labour during the Civil War and the years preceding it because it was a rural society. However, the Northern economy was not dependent on slave...
perpetuate itself by its own natural reproduction.
Until May 13th, 1888 it was, officially. And since then, even as late as 2008, there was still slavery going on, but it is regarded as illegal.
They were forced to work or sacrificed