Memorial Day is much more than a three-day weekend that marks the beginning of summer. Memorial Day was originally known as Decoration Day because it was a time set aside to honor the nation's Civil War dead by decorating their graves. To many people, especially the nation's thousands of combat veterans, this day, which has a history stretching back all the way to the Civil War, is an important reminder of those who died in the service of their country. It was first widely observed on May 30, 1868, to commemorate the sacrifices of Civil War soldiers, by proclamation of General John A. Logan of the Grand Army of the Republic, an organization of former sailors and soldiers. Today, Memorial Day is celebrated at Arlington National Cemetery with a ceremony in which a small American flag is placed on each grave. Memorial Day falls on the last Monday of May.