It is the fill handle, enabling you to drag down a cell with a formula or for extending pre-defined lists. For example: if you type Sunday into a cell and press return, and then use the fill handle to fill down, it will automatically put in the other days of the week. You can do the same for Months.
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.