OK, let's do the easy part. 6.02 x 10^23 pencils x 190.5 mm/pencil. That's gonna give you an answer in mm.
I get something more that 1.1 x 10^26 mm. That 1 x 10^23 m or 1 x 10^20 km. Now, a light year is 9.5 x 10^12 km, so this corresponds to something about 1 x 10^7 lightyears.
Thats one million light years. That's a lot of wood.
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.