The answer is C and E, hope this helps. :)
The World war 1 has been documented as, World War, WWI, the War to End All Wars, and the Great War.
Some examples of this were the Fugitive Slave Act, Preston Brooks's attack on Charles Sumner, and the Dred Scott decision (the part of it which said that African Americans could never be citizens). None of these events tangibly hurt the North or the South.
The purpose of the Jim Crow laws was to segregate and disenfranchise black Americans. The Jim Crow system, which was a racial caste class in actuality, was a series of immutable anti-black laws that mainly deprived African Americans the right to suffrage.
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