This past weekend was the sesquicentennial of the siege of Fort Macon. The N.C. Division of Parks & Recreation provides this description of the events:
Early in 1862, Union forces commanded by Maj. Gen. Ambrose E. Burnside swept through eastern North Carolina, and part of Burnside's command under Brig. Gen. John G. Parke was sent to capture Fort Macon. Parke's men captured Morehead City and Beaufort without resistance, then landed on Bogue Banks during March and April to fight to gain Fort Macon. Col. Moses J. White and 402 North Carolina Confederates in the fort refused to surrender even though the fort was hopelessly surrounded. On April 25, 1862, Parke's Union forces bombarded the fort with heavy siege guns for 11 hours, aided by the fire of four Union gunboats in the ocean offshore and floating batteries in the sound to the east.
While the fort easily repulsed the Union gunboat attack, the Union land batteries, utilizing new rifled cannons, hit the fort 560 times. There was such extensive damage that Col. White was forced to surrender the following morning, April 26, with the fort's Confederate garrison being paroled as prisoners of war. This battle was the second time in history new rifled cannons were used against a fort, demonstrating the obsolescence of such fortifications as a way of defense. The Union held Fort Macon for the remainder of the war, while Beaufort Harbor served as an important coaling and repair station for its navy.
A full two days of events, including a demonstration of night artillery bombardment, commemorated the battle. If you missed the weekend at Fort Macon, you can get a good taste of the events with this video: