Map shows marker but doesn't show real map in background?

As indicated by your screenshot, your device or emulator does not have any connectivity. The zero-bars icon tells you this.

Its a problem with api key. Create a new api key using MD5 key. That helped me.

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.