CHARLESTON, SOUTH CAROLINA—The discovery of a lead musket ball suggests that archaeologists in Charleston, South Carolina, may have located a Revolutionary War–era trench, The Post and Courier reports. Excavations are ongoing behind the city's historic Aiken-Rhett house, where a team from the College of Charleston hopes to uncover British military earthworks used in the 1780 Siege of Charleston. The ball and trench constitute the first physical evidence of British lines from the battle, which have eluded researchers for years. To read more about archaeology in the Low Country, go to “Off the Grid: Colonial Dorchester, South Carolina.”