North Korea has a command-type economy.
Wood houses and stone wells
Answer: Lower South
Explanation: The South had slaves and the slaves worked the cotton fields, the cotton grew better in the south because it is hotter and more humid, it also rains a lot more.
We know this by dating the structures, evidence of life there long before anywhere else and by the Bible. You can also look into other sources of history too. There is a ton of info on Egypt provided by scrolls a old writing on stone tablets.