Final answer:
South Carolina petitioned to become a Royal Colony in 1719 due to dissatisfaction with the Lords Proprietors and threats from external dangers. The governance shifted from the Lords Proprietors to the English Crown, and Carolina was split into North and South, with both becoming Royal Colonies by 1729.
Step-by-step explanation:
Transformation of the Carolinas into Royal Colonies
The major change that occurred in the Carolinas as a result of becoming royal colonies was the shift in governance from the control of the Lords Proprietors to the direct rule of the English Crown. In 1719, dissatisfied with the management of the colony and the threats posed by pirates like Blackbeard, as well as attacks from the Spanish and Native Americans, South Carolina's residents petitioned to become a Royal Colony. This transition provided them with a government and protection offered by the Crown. Following this, Carolina was officially divided into North and South Carolina, with South Carolina being the first to become a Royal Colony. North Carolina followed in 1729, establishing both as Royal Colonies, which remained until the American Revolution. This change essentially ended the proprietary governance system and brought them under the direct administrative control of the English monarchy, altering the colonial framework that persisted until the revolution for independence.