A key reason the Incas were able to control their large empire was that they built a road system to connect distant areas and move armies.
Isolationism did not contribute to the rise of Kush.
Answer:
The answer you are looking for is <u>SEVEN!</u>
Explanation:
By the time Lincoln took office in March of 1861, seven states had seceded from the Union.
Lincoln was elected on Tuesday, November 6, 1860.
The Civil War started on April 12, 1861.
Between which time, no other states seceded from the Union.
Hope this helps!