Why doesn't the set remove duplicates from the sorted list?

All your dates have different millisecond values, that are not printed in your traces. Set the milliseconds to 0.

Java.util. Date carries time information with it, you need to zero out the time information then set what you want to be set or exclude the time portion from the comparison inside your custom Comparator.

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.