For what it's worth, in C SortedDictionary.
Which ever is easiest for you to implement, you won't get better insertion than log(n) with a sorted list and we'd probably need a lot more detail than what you've provided to decide if there are other factors that make another structure more appropriate.
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.