Thousands of spectators watch as Civil War reenactors perform Pickett’s Charge on the last day of a Battle of Gettysburg reenactment on June 30, 2013 in Gettysburg, Pennsylvania. Some 8,000 re-enactors from the Blue Gray Alliance participated in the event, marking the 150th anniversary of the July 1-3, 1863 Battle of Gettysburg. (John Moore/Getty Images)