How did Mohammed get all the information for the writing of the Koran? who helped him?

No. The practice of the time was to let the body decay, then after months or years, to gather the bones remaining and box them up. In both situations, it is just different means to let nature "reprocess" the remains.

Whether it is by biological decay or by fire, the same result.

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.