Memorial Day is a federal holiday in the United States for
remembering the men and women who died while serving
in the country's armed forces.
The holiday, which is celebrated every year on the last Monday of May,
was formerly known as Decoration Day and originated after the
American Civil War to commemorate the Union and Confederate soldiers
who died in the war. By the 20th century, Memorial Day had been extended
to honor all Americans who have died while in the military service.
It typically marks the start of the summer vacation season,
while Labor Day marks its end.