Hi, I am a high school senior and am working on my senior research paper. I have chosen the topic of "How martial arts in the United States has reflected the changes in society from th 1930s to today. If any of you have any ideas or information you could provide me, I will be most grateful. Sources are also needed, including magazine articles, fiction and nonfiction books, songs, short stories, and art. Please help me by sharing any idea or sources on this topic! Thank you!