<Tr> <Th> Frequency </Th> <Td> Annual </Td> </Tr> <P> Memorial Day or Decoration Day is a federal holiday in the United States for remembering the people who died while serving in the country's armed forces . The holiday, which is currently observed every year on the last Monday of May, was held on May 28, 2018 . The holiday was held on May 30 from 1868 to 1970 . It marks the unofficial start of the summer vacation season, while Labor Day marks its end . </P> <P> Many people visit cemeteries and memorials, particularly to honor those who have died in military service . Many volunteers place an American flag on each grave in national cemeteries . </P> <P> Two other days celebrate those who serve or have served in the U.S. military: Veterans Day, which celebrates the service of all U.S. military veterans.; and Armed Forces Day, a minor U.S. remembrance celebrated earlier in May, specifically honoring those currently serving in the U.S. military . </P>

Where did the term decoration day come from