<span>The Kansas-Nebraska Act of 1854 allowed settlers in those territories to determine if they would allow slavery within their boundaries. This reignited the sectional conflict over slavery extension into new states, a precursor of the Civil War</span>
Answer:
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Explanation:
A. with captured Africans who were brought as slaves
During that time period, certain African group leaders would conquer other African tribes and sell the members as slaves to Europeans, who then sold them to colonists in the Americas. These kidnapped Africans were then used to fill the need for labor on plantations, including sugar, in the Americas.
What treaty are we talking about?