I think you are getting it "right" except for that first datetime column. You should use the TEXT type, not a numeric type.
Importing csv into database is 15 lines of code task and it gives you more control over this process. Table columns names like "var3" are just terrible, however there is no need to rename it in database you can just use sql aliases.
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.