Gettysburg National Cemetery was established in Gettysburg, Pennsylvania, after the Battle of Gettysburg to bury Union soldiers who had been killed in the Civil War’s deadliest battle, fought July 1 to 3, 1863. Planned soon after the fighting, it gathered remains from scattered graves across the battlefield, churchyards, and hospital sites under the supervision of Samuel Weaver. William Saunders designed the cemetery in 1863 with graves arranged by state in semicircles around a central monument. The cemetery contains 3,512 Civil War interments, including 979 unknowns, and became nationally significant on November 19, 1863, when Abraham Lincoln delivered the Gettysburg Address at its consecration.