Fort Sumter was built after the War of 1812 as a means to protect the Charleston harbor. Work started in 1829 but by the time that the Civil War broke out it was still not completed. The opening shots of the Civil War were shot here on April 12, 1861 the Confederate troops successfully took the fort from the Union troops and held it for almost the rest of the war, it served as the only break in the naval blockade that the Union had around the whole of the South. After the Confederacy took the fort the Union attempted to retake a few time but never succeeded. The Union maintained naval barrages on the fort and even though the fort was reduced to utter rubble the Confederate troops still held it. After the war the fort was rebuilt so much of what is here is not part of the original fort.
The fort is a small place, you'd think it was much larger given how important is was. We got about an hour to walk around the island and it is more than enough time to get to see everything.
Shell buried in the wall from the Civil War
Memorial to the battle and troops killed here
Flags which once flew over Fort Sumter: USA (Union), CSA, and S Carolina
The powder magazine, it exploded while the Confederacy held it if I am not mistaken
Another shell in the wall
Fort Pinckney, also in Charleston harbor.