Step-by-step explanation:
When Abraham Lincoln, a known opponent of slavery, was elected president, the South Carolina legislature perceived a threat. Calling a state convention, the delegates voted to remove the state of South Carolina from the union known as the United States of America. The secession of South Carolina was followed by the secession of six more states—Mississippi, Florida, Alabama, Georgia, Louisiana, and Texas–and the threat of secession by four more—Virginia, Arkansas, Tennessee, and North Carolina. These eleven states eventually formed the Confederate States of America.