In 1775, Colonel William Moultrie was asked by the Revolutionary Council of Safety to design a flag for the South Carolina troops to use during the American Revolutionary War. Moultrie’s design had the blue of the militia’s uniforms and the crescent. It was first flown at Fort Johnson.
This flag was flown in the defense of a new fortress on Sullivan’s Island, when Moultrie faced off against a British fleet that hadn’t lost a battle in a century.
In the 16-hour battle on June 28, 1776, the flag was shot down, but Sergeant William Jasper ran out into the open, raising it and rallying the troops until it could be mounted again. This gesture was so heroic, saving Charleston, South Carolina, from conquest for four years, that the flag came to be the symbol of the Revolution, and liberty, in the state and the new nation.
Soon popularly known as either the Liberty Flag or Moultrie Flag, it became the standard of the South Carolinian militia, and was presented in Charleston, by Major General Nathanael Greene, when that city was liberated at the end of the war. Greene described it as having been the first American flag to fly over the South.”