Rosa parks arrest on the montgomery alabama bus december 1955 sparked the boycott over 1955 to 1956 to make a mass protest to the supreme court to end the segregation rule on public buses
I believe it is D....
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This term was known as popular sovereignty and resulted in debate over many decades in both State legislatures and the United States congress. It led to tension across the free and slave states, even leading to a event known as Bleeding Kansas in which the residents would determine whether to be free or slave
The answer should be <span>Radiocarbon</span>