On December 27, 1860, Major Robert Anderson evacuated the U.S. force from Fort Moultrie in Charleston Harbor to Fort Sumter, spiking the guns and cutting down the flagpole. “No other flag but the Stars and Stripes shall ever float from that staff,” he said. Early in the morning on April 14, 1861, James Chesnut gave the order for the first shot to be fired at Fort Sumter. When Anderson surrendered, South Carolina’s Governor Francis W. Pickens, who had introduced the Ordinance of Secession, proclaimed, “I can here say to you it is the first time in the history of this country that the stars and stripes have been humbled. That flag has never before been lowered before any nation on this earth. But today it has been humbled, and humbled before the glorious little State of South Carolina.” “Our flag,” recorded Mary Chesnut, “is flying there.”
http://www.theatlantic.com/politics/archive/2015/06/confederate-flag-south-carolina-history/396695/