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1. Missouri Compromise.

2. Nat Turner's Rebellion.

3. Compromise of 1850

4. Bleeding Kansas.

5. Dred Scott v. Sandford.

Explanation:

Step 1

The Top Five events related to westward expansion that affected African Americans are listed below.

1. Missouri Compromise.

2. Nat Turner's Rebellion.

3. Compromise of 1850

4. Bleeding Kansas.

5. Dred Scott v. Sandford.

Step 2

The Civil War was the culmination of a series of confrontations concerning the institution of slavery.

Missouri Compromise:

The Missouri Compromise was significant because it helped to reduce tensions between the North and the South. By doing so, it helped to delay the Civil War. ... At that point, Missouri wanted to enter the Union as a slave state. That would have given the slave states more power in the Senate than the free states had.

Thomas Jefferson, upon hearing of this deal, “considered it at once as the knell of the Union.  It is hushed indeed for the moment.  But this is a reprieve only, not a final sentence. A geographical line, coinciding with a marked principle, moral and political, once conceived and held up to the angry passions of men, will never be obliterated; and every new irritation will mark it deeper and deeper.” As one white Charlestonian complained, "By the Missouri question, our slaves thought, there was a charter of liberties granted them by Congress."

African Americans knew that they could not rely upon whites to end slavery, but they also recognized that the increasing divide between north and south and their battle over western expansion could open opportunities for blacks to exploit. The most explosive of these future black actions would be NAT TURNER'S REBELLION in 1831.