Usually, you should only set DataSource once and it will keep track of changes like adding, removing, modifying. If it does not, use a BindingSource as the data source for the DataGridView and the list as the data source for the BindingSource and call BindingSource. RefreshBindings upon changes.
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.