Since you have excluded the fields created_by and create_date in your form, trying to assign them through form. Cleaned_data does not make any sense.
Pass a user as a parameter to form constructor, then use it to set created_by field of a model instance.
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.