Answer:
By themselves, is the right answer.
Explanation:
The 13 colonies proclaimed their independence from Great Britain and the refusal of the colonial metropolis to loose its posessions and taxes coming from the colonial economy, and to accept their own self-rule led to war, the Revolutionary War.
In Dred Scott v<span>. </span>Sandford<span> the Supreme Court ruled that Americans of African descent, whether free or slave, were not American citizens and could not sue in federal court. The Court also ruled that Congress lacked power to ban slavery in the U.S. territories.
Hope I could help :)
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