What was the result of the free-soil party's participation in the election 1848?

What kind os source would a historian use to get a firsthand account of a past event

By june 1943, the allies had regained control of north america. what was the advantage of controlling this region? what would you describe the axis's situation in europe in 1942? how might the axis have benefited by gaining control of great britain by 1942? the last questions of my quiz 10 points more than normal answer it honestly so i can get a good grade < 3

Name three new weapons that changed how ww! was fought and how?