A correction first: It was Fort Sumter. It protected Charleston,South Carolina.
Charleston
The US Fort in Charleston Harbor that was the site where the first shots of the Civil War were fired.
Fort Sumter
Fort Sumter is in the harbor of Charleston, South Carolina. Fort Sumter is the original location of the beginning of The American Civil War.
The first engagement was around Fort Sumter. Located in Charleston Harbor, it was a fort built to protect the harbor. When the US Navy hired a ship to take supplies, Southern troops fired on the ship. This lead to cannon fire at the fort as well. The ship had to retire and the Union soldiers surrendered.
Fort Johnson, Fort Sumter, Fort Moultrie
Fort Sumter is located in Charleston Harbor, South Carolina, USA. It is historically significant as the site where the first shots of the American Civil War were fired on April 12, 1861. The fort is now a National Monument and can be accessed by ferry from downtown Charleston.
Charleston, SC harbor
Ft. Sumter was not a war. It was the first incident in the civil war. On April 12, 1861 the Confedates fired on the island where the fort was located in Charleston, SC harbor. The union army surrendered the fort the next day. These were the first shots of the war.
Fort Sumter
Fort Sumter was and is in Charleston Harbor, South Carolina
Fort Sumter