Answer:
The Civil war was started because of rising tensions between the North and South. The biggest one was the issue of slavery.
Explanation:
The height of the African slave trade <span>took place across the </span>Atlantic Ocean<span> from the 15th through the 19th centuries. Hope this helps! :)</span>
Between the given period, the US increased in size having spread towards the west, while in the meantime fighting for human rights and freeing the slaves.
Single stories negatively relate to U.S. history because it caused a lot of hate to be given toward a specific person or group of people just because someone made up a fake story. Single stories have always been a problem not just now but all throughout history.