Okay. I have a quick question. I researched this a bit, but I can't find the answer that satifies me. This makes me wonder why there were house-elves were in the wizarding society. There was slavery practised in the British colonies. This started getting really contested in the 1800s. They worked with links in the slave trade. What I want to know in whether slavery was ever practised in the British Isles. When did they gain their their freedom? What's the history here? Please piece this together.