A rare seven-star Stars and Bars, the first flag of the Confederacy, is seen at the Charleston Museum in Charleston, S.C., on April 30, 2014. The flag is part of a new exhibit of flags at the museum that opens on Monday, May 5, 2014. The flag was used for only a few months in 1861 because the seven stars were replaced with additional stars as more Southern states seceded from the Union. (AP Photo/Bruce Smith)

A rare seven-star Stars and Bars, the first flag of the Confederacy, is seen at the Charleston Museum in Charleston, S.C., on April 30, 2014. The flag is part of a new exhibit of flags at the museum that opens on Monday, May 5, 2014. The flag was used for only a few months in 1861 because the seven stars were replaced with additional stars as more Southern states seceded from the Union. (AP Photo/Bruce Smith)