The best place to learn about Roth IRA conversions will be from your bank or the holder of your IRA. If you don't have any yet and just want to learn, Investopedia has an excellent page, though unfortunately I can't link it to you due to the nature of the task.
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.