Slave life

Slavery. Basically the trade and owning of human beings that seem to be deemed lesser by others. It is a weird concept if you think about it. I mean, who just decided to make other people slaves. Who even came up with the idea. Why would one even come up with the idea.
And when we think of slavery, we think of white people owning black people. But in reality, there were slaves and slaves trades in African societies, which was actually very surprising to read. Not to mention, that the slavery we think of today is not the only form of slavery there was, there were many different kinds. Kinds in which slaves would get assimilated into communities or the owner's household. It all just depended, some children were even free from the slavery of their parents, while others inherited slave life just like them. And slaves in Islam got positions in the military or even political status! What?! How crazy is that?! Who would have thought that about slaves back then? But then again, we learn western culture here, so I guess we wouldn't learn about all these different types of slaves and slaves elsewhere because we are a very, I guess you could say, conceited culture.