Fort Sumter
noun
a fort in SE South Carolina, in the harbor of Charleston: its bombardment by the Confederates opened the Civil War on April 12, 1861.
British Dictionary definitions for fort sumter
Fort Sumter
/ (ˈsʌmtə) /
noun
a fort in SE South Carolina, guarding Charleston Harbour. Its capture by Confederate forces (1861) was the first action of the Civil War