I can't find a handy list for all countries, but this Wikipedia page has some useful info: en.wikipedia.org/wiki/Workweek In general, Friday is a holy day in Islam|Muslim countries, so their weekend is either Thu & Fri or Fri & Sat. Saturday is the Judaism|Jewish Sabbath, so in Israel the weekend is Fri & Sat. In many Asian countries, it's normal to work six days a week, so the weekend for a lot of people is just Sunday.
If you are going to seriously rely on this info, you should double check it for the countries that are important to you.
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.