1945 The Atomic Bombs (Nagasaki, roshima) Decolonization 1980s Fall Of Berlin Wall 1914 First Total War- WWI 1929 Stock Market Crash Apartheid Civil rights and so on.
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.