There appears to many books and academic papers written on the subjects of storic Linguistics and Phonetic Changes throughout history, but after spending a good amount of time searching there seems to be only discussions based on theories of how these changes occurred rather than actual historic pronunciation charts. It appears that as soon as pronunciation was recorded in dictionaries, they became much less changeable since simply having a pronunciation reference added a huge amount of stability to the various dialects. When a words pronunciation changed enough it would inevitably change the spelling.
This would be an interesting website for someone to create. There are big charts such as these palgrave.com/language/freeborn/site/pdfs... that describe the pronunciation of old english, but the authers of htese charts state that there is no way of knowing if the information is 100% accurate. They just make guesses based on words that are still in existence that they believe are pronounced the same.
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.