Women gaining the right to vote, slaves getting rights, etc
Reconstruction Amendments. During Reconstruction, three amendments to the Constitution were made in an effort to establish equality for black Americans. ... The Fifteenth Amendment, ratified in 1870, prevents the denial of a citizen's vote based on race, color, or previous condition of servitude.
Henry is described as a "war devil" in the Red Badge of Courage because he loads and shoots and reloads and shoots and shoots until his rifle is so hot. He runs towards the enemy without any regard for his life, so that’s why he is described as a madman, a “war-devil”.