What was the outcome of the battle of el alamein

How did the manhattan project to end the war? a scientists working on the project built large bombers. b scientists working on the project discovered uranium. c scientists working on the project developed the atomic bomb. d scientists working on the project shared secrets with axis scientists.

Was the civil war inevitable? could anything have been done through compromise to stop it, or did it have to happen?

After the civil war which president was called a "carpetbagger"?