I believe in your case 4th parameter in FusionCharts. RenderChart is a Chart ID and not the 2nd one. Try to vary it, e.g. "FactorySum1" and "FactorySum2" and the error should disappear.
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.