What are the ten main categories of the Dewey decimal system?

The Ten major headings in DDC are: 000 Generalities 100 Philosophy and Psychology 200 Religion 300 Social sciences 400 Language 500 Natural sciences & mathematics 600 Technology (Applied sciences) 700 The Arts 800 Literature & rhetoric 900 Geography & history.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.