Everyone knew what men used female slaves for, but that didn't mean it was something a well-bred woman would want to look at!

Having experienced slavery themselves, they were the more inclined to use human slaves.

So using slaves isn't such a hot idea.

To work the farm and to serve the household, he used slaves captured during his raids.

They might have been using slaves from the area.

Then, they took property from the Earth for themselves and started to use slaves.

Government benefited, too, often using slaves to build public works.

They couldn't use slaves, for a couple of reasons.

They used, as intelligent men or machines will always use, slaves.

They must have used slaves to do all their manual labor!