American Civil War: Battle of Fort Sumter. The war begins with Confederate forces firing on Fort Sumter, in the harbor of Charleston, South Carolina.

The American Civil War was a civil war in the United States between the Union and the Confederacy, which was formed in 1861 by states that had seceded from the Union. The central conflict leading to war was a dispute over whether slavery should be permitted to expand into the western territories, leading to more slave states, or be prohibited from doing so, which many believed would place slavery on a course of ultimate extinction.

The Battle of Fort Sumter was the bombardment of Fort Sumter near Charleston, South Carolina, by the South Carolina militia. It ended with the surrender of the fort by the United States Army, beginning the American Civil War.

The Confederate States of America (CSA), also known as the Confederate States (C.S.), the Confederacy, or the South, was an unrecognized breakaway republic in the Southern United States from 1861 to 1865. It comprised eleven U.S. states that declared secession: South Carolina, Mississippi, Florida, Alabama, Georgia, Louisiana, Texas, Virginia, Arkansas, Tennessee, and North Carolina. These states fought against the United States during the American Civil War.

Fort Sumter is a historical sea fort located near Charleston, South Carolina. Constructed on an artificial island at the entrance of Charleston Harbor in 1829, the fort was built in response to the War of 1812, which had exposed the inadequacy of existing American coastal fortifications to defend against naval attacks. Fort Sumter was still incomplete in 1861 when it was attacked by Confederate Forces during the Battle of Fort Sumter on April 12, sparking the American Civil War; the fort was severely damaged during the battle and left in ruins. Although there were some efforts at reconstruction after the war, Fort Sumter as conceived was never completed. Since the middle of the 20th century, the fort has been open to the public as part of the Fort Sumter and Fort Moultrie National Historical Park, operated by the National Park Service.