Memorial Day is a United States Federal holiday observed on the last Monday of May (in 2008 on May 26). Formerly known as Decoration Day, it commemorates U.S. men and women who perished while in mılıtary servıce to their country. First enacted to honor Unıon soldiers of the American Civil War, it was expanded after World War Ito include American casualties of any war or military action.Traditional observanceMany people observe this holiday by visiting cemeterıes and memorıals. A national moment of remembrance takes place at 3 p.m. US Eastern time. Another tradition is to fly the U.S. flag at half-staff from dawn until noon local time. Volunteers usually place an American flag upon each grave site located in a National Cemetery.

In addition to remembrance, Memorial Day is also used as a time for picnics, barbecues, family gatherings, and sporting events. One of the longest standing traditions is the running of the Indianapolis 500, which has been held in conjunction with Memorial Day since 1911. Some Americans also view Memorial Day as the unofficial beginning of summer and Labor Day as the unofficial end of the season. The national "Click It or Ticket" campaign ramps up beginning Memorial Day weekend, noting the beginning of the most dangerous season for auto accidents and other safety related incidents. The U.S. Air Force's "101 Critical Days of Summer" begin on this day as well. Many Americans use Memorial Day to also honor other family members who have died.HISTORY

Following the end of the Civil War, many communities set aside a day to mark the end of the war or as a memorial to those who had died. Some of the places creating an early memorial day include Charleston, South Carolina; Boalsburg, Pennsylvania; Richmond, Virginia; Carbondale, Illinois; Columbus, Mississippi; many communities in Vermont; and some two dozen other cities and towns. These observances eventually coalesced around Decoration Day, honoring the Union dead, and the several Confederate Memorial Days.

According to Professor David Blight of the Yale University History Department, the first memorial day was observed in 1865 by liberated slaves at the historic race track in Charleston. The site was a former Confederate prison camp as well as a mass grave for Union soldiers who had died while captive. The freed slaves reinterred the dead Union soldiers from the mass grave to individual graves, fenced in the graveyard & built an entry arch declaring it a Union graveyard; a very daring thing to do in the South shortly after North's victory. On May 30 1868 the freed slaves returned to the graveyard with flowers they'd picked from the countryside & decorated the individual gravesites, thereby creating the 1st Decoration Day. A parade with thousands of freed blacks and Union soldiers was followed by patriotic singing and a picnic.

Many of the states of the U.S. South refused to celebrate Decoration Day, due to lingering hostility towards the Union Army and also because there were very few veterans of the Union Army who lived in the South. A notable exception was Columbus, Mississippi, which on April 25, 1866 at its Decoration Day commemorated both the Union and Confederate casualties buried in its cemetery.  

The alternative name of "Memorial Day" was first used in 1882, but did not become more common until after World War II, and was not declared the official name by Federal law until 1967 . On June 28, 1968, the United States Congress passed the Uniform Holidays Bill, which moved three holidays from their traditional dates to a specified Monday in order to create a convenient three-day weekend and for the first time recognized Columbus Day as a federal holiday. The holidays included Washington's Birthday (which evolved into Presidents' Day), Veterans Day, and Memorial Day. The change moved Memorial Day from its traditional May 30 date to the last Monday in May. The law took effect at the federal level in 1971 . After some initial confusion and unwillingness to comply at the state level, all fifty states adopted the measure within a few years, although Veterans Day was eventually changed back to its traditional date. Ironically, most corporate businesses no longer close on Columbus Day or Veterans Day, and an increasing number are staying open on President's Day as well. Memorial Day, however, has endured as one holiday during which most businesses stay closed because it marks the beginning of the "summer vacation season." This role is filled in neighboring Canada by Victoria Day, which occurs either on May 24 or the last Monday before that date, placing it exactly one week before Memorial Day.