Calm down. It was probably just your imagination. Ghosts are scientifically impossible, contrary to what horror movies say.
What you've been encountering could have been a demon posing as a ghost, but even that, I'm very skeptical about, and you should be too. Talk to a priest or something, they can help better than Yahoo Answers.
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.