It's looking for predizione with an empty namespace but it can only find predizione in the default namespace http://www.oracolo.it/i-ching because you don't have elementFormDefault="qualified" set up in the xsd:schema element. You can read more about this attribute and why it's needed here .
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.