Well I cant be exact but from what I know. Abraham was the 1st to be contacted by God to start the covenant. God promised Abraham a son from his wife Sarah.
She Laughed at the idea as she was to old to have a child. (Menopause etc) I think it was 3 years passed and no son. So Sarah told Abraham to go unto (Have a child) with her maid so that there family might be carried on.
He did so an had a son named Ishmael (This was not the one God promised and is believed to be so for the Islam faith). 2 years later (I think) and Sarah had a child named Isaac (This is the one promised by God) And he went on to form the Jewish Faith. In the testaments God promised a "Messiah" (Savior or Christ).
He would be "God with us" and save his people from the punishment we deserve (This comes from the Jewish Faith). (Large amount of time passed) Then Jesus was born into the world as the Christ (Messiah, Savior) and told his disciples and people he preached to the way to salvation (Some Jews didn't think this is the Messiah promised by God, thus the religion still exists today). Thus those who follow Christ are the Christians.
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.