Why does douglass present a parody, or mocking imitation, of a popular church hymn in the conclusion of the appendix?

Was american neutrality between september 1939 and december 1941 a tragic mistake

The soldiers in the novel use the phrase "it all looked good on paper" several times throughout their experiences. what does this mean in the context of the war?

Human beings spread all around the world over a period of millions of years. identify when humans arrived in different regions of the world. 200,000 years ago 100,000 years ago 40,000 years ago 30,000 years ago