Memorial Day is a federal holiday observed annually in the United States on the last Monday of May.
Formerly known as Decoration Day, it originated after the American Civil War to commemorate the fallen Union soldiers of the Civil War.
By the 20th century Memorial Day had been extended to honor all Americans who have died in all wars.
Memorial Day is a day of remembering the men and women who died while serving in the United States Armed Forces.
As a marker it typically marks the start of the summer vacation season, while Labor Day marks its end.