There is closed captioning for the hearing impaired wizards. I recommend using full screen with them though, they are kind of long. And please forgive me if they are kind of hard to read. I talk a lot and it was my first time doing them.
If you are interested in Japanese history I recommend Modern Japan: A History in Documents and also the TV mini-series Japan: Memoirs of a Secret Empire and Seven Samurai! Nah I'm kidding. Kurosawa is an awesome film-maker, but he's not really educational (ten points if you got the other reference in the post). ^_^