Please help me answer these 5 questions about African American History? Please answer in full detail and answer the questions correctly.

1) How did enslaved Africans gain their freedom during the American Civil War? Give two examples.

2) What was the initial reason for the Union to go to war against the Confederacy? How did African-descended people turn the tide of the war?

3) How did Black men change the political landscape during Reconstruction? Give examples.

4) In what ways did the Northern and Southern States oppress Black people during Reconstruction?

5) What ways did Black people navigate Jim Crow?