please give me your choices. I can't help if you don't give me choices.
The Missouri compromise was nullified by the Kansas-Nebraska act. This act allowed the people in each state to determine whether or not slavery would continue within their state.
Abolitionist John Brown was executed because of his attempt to seize the arsenal at Harper's Ferry. John Brown led the Harper's Ferry raid.
The United States upheld a ten-hour work day, which was accepted for both men and women. :)
Answer:
the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life
Explanation: