The quick answer to that question is yes you should start that YouTube channel about history. Before starting any channel please read you tube’s term of service for all the rules that you must follow. Here a link to that page: https://www.youtube.com/static?template=terms
After reading that, if you want to start an YouTube channel about history, go ahead and start that channel but there are a few things that you need to have in order first?
what should I make videos about dealing with history
This is the first question you should ask yourself when starting a YouTube channel about history. What kind of history are you going to talk about and do you know a lot about that history? We live in a world where there is disinformation and you mist know the right history to make videos about with proof. Are people looking at the history that you want to do? You can just type in the topic into YouTube and see the channel and views on the topic you want to do. The best thing that you can do is know the history that you want to talk about your videos.
Yes you should start that channel and help people who watch your videos. Know the history that you are talking about and make some videos