In world history dating back several thousand years or more, slaves have existed. It is nobody today's fault this happened. I do not see how using a medieval hi

In world history dating back several thousand years or more, slaves have existed. It is nobody today's fault this happened. I do not see how using a medieval historical reality to be offensive. Master slave hardrive settings on IDE drives for instance, who were offended by that? What is next? What about the byzantine generals problem? The byzantines, I am sure someone will dig up some dirt in them and label them off limits. Is it now offensive to say "Slaving around?"