Answer:
I wrote a really thorough explanation but It got deleted because "it was inappropriate" I guess they just want a watered-down version but Im not give you that so here:
PS: if you want sources ask and you shall receive. goodluck! (:
North:
Mountainous, colder temperature, larger population, mining & factory industry
South:
lower elevation, swampland, warmer temperature, smaller population, slavery legal, farming and cotton based industry.
I think it was Stalin in 1956
Answer: Kush flourished between c. 1069 BCE and 350 CE.
Explanation: