What factors made the south distinct from the rest of the united states during the early nineteenth century?

During the early nineteenth century, the South was distinct from the rest of the United States due to several reasons.
These reasons include:
1- The increase in the number of slaves
2- The race superiority and the bridge (gap) that was found between the races
3- The distribution of the crops
4- The "Peculiar Institution" which is a term that referred mainly to the system of slavery that existed in the South during this period.