When and why were the Carolinas divided?

In the late 1600s, the south of Carolina was characterized by the slave economy. Rice was grown in the region and quickly became a cash crop. Consequently, the demand for workers increased, which resulted in many people going to the region. African slaves formed most of the population before the 1700s. Colonists in the region also tried enslaving Indians.
On the other hand, the northern part of Carolina had a population that was primarily made up of former indentured servants who owned tobacco farms. They did not succeed in trade like the people in the south. Slavery was practiced but not as much when compared to other regions in Carolina. Many people from this region felt that their counterparts in the southern part felt superior to them.
Both the northern and southern part of Carolina continued to grow in different ways, which resulted in the need for a formal split. Consequently, in 1712, South Carolina and North Carolina were formed.