I recommend reading the box. The suggested age is literally right there. It's usually bold and in a different color...stick to that... A 9-10 month old will put anything in their mouth... ANYTHING.
So I wouldn't go with Legos.
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.