Not very long. The origins go back to 1915 and Albert Einstein's theory of Relativity. But it took a while to work out what stars were ... Cecilia Payne-Gaposchkin first proposed that stars were made primarily of hydrogen and helium in her 1925 PhD thesis.
That is a quote from here -- https://en.wikipedia.org/wiki/Star#Obser... Before that there was no explanation for what stars were --- other than the fall-back position that god made them (and so we don't need to know). The idea that they could be a fire burning was "disproved" because no fire could burn for the millions of years that the earth had existed for.
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.