>>509777414 (OP)slavery happened for most of human history but it was basically just another form of employment. Depending who your "employer" was life might be decent. all your meals and housing are covered, you can get married and have a family life. The laws of nations often covered slaves. In many cases slaves had a path to freedom
It wasn't exactly some super evil thing like we imagine, yeah it sounds fucked up in retrospect but feeding and housing people in exchange for work, it was one of the least cruel things you could do to a conquered people