Fort Barrancas mostly by enslaved African-American workers. January 8, 1861, more than three months before the American Civil War officially started at Fort Sumter, South Carolina, a company of 50 U.S. Army soldiers stationed at Fort Barrancas, under the command of John H. Winder fired upon a militia. This militia was Florida state troops under Colonel William Henry Chase demanding that the U.S. troops surrender the fort. Lieutenant Adam J. Slemmer, acting commander in Winder's absence, had the troops fire shots meant to repel the militia. Lt Slemmer knew that Fort Pickens was easier to defend, so he spiked the guns at
Battle of Fort Sumter the guns fired in a counterclockwise sequence around the harbor, with 2 minutes between each shot; Beauregard wanted to conserve ammunition, which he calculated would last for only 48 hours. Edmund Ruffin, another noted Virginia secessionist, had traveled to Charleston to be present for the beginning of the war, and fired one of the first shots at Sumter after the signal round, a 64-pound shell from the Iron Battery at Cummings Point. The shelling of Fort Sumter from the batteries ringing the harbor awakened Charleston's residents (including diarist Mary Chesnut), who rushed out into the predawn darkness to watch the