 During the Civil War, the Union Army placed siege batteries along the north coast of Tybee Island that aided in their successful bombardment and capture of Fort Pulaski on April 10–11, 1862.This was the first significant use of rifled cannons against masonry fortifications and demonstrated that masonry fortifications were obsolete.Recently, the City of Tybee Island has taken action to commemorate Tybee's historic significance in the Civil War.