Originally called Decoration Day, Memorial Day was first observed on May 1, 1865 in Charleston, South Carolina.
Thousands of African Americans, including the formerly enslaved, the 54th Massachusetts Infantry Regiment, and the 34th and 104th United States Colored Troops, were led by children as they gathered to honor 257 Union soldiers who were buried in a mass grave behind the grandstand of the city’s Washington Race Course . The ancestors paid tribute to those who gave their lives by decorating their graves, hence Declaration Day.
Check out the hidden history of Memorial Day.