Although the Civil War wasn't directly linked to slavery at 1st, many Activists such as Frederick Douglass appealed to president Lincoln who then decided to abolish slavery. Ever since the creation of the United States of America slavery had brought up the conflict between the North and the South. The 13th amendment abolished slavery and was passed December 6th, 1865
I believe they haven't.
We can see this through the language that is chosen by the author to desrcibe Okonkwo's encounter with White men. The author use language such as 'the first shadow' of white men. This phrase indicates that prior to that occurence, they never made contact to any white men before.
The three answers is the answer
The answer you are looking for is the Intermediate Appeals Court.