Memorial Day is a federal holiday in the United States for honoring and mourning the military personnel who have died in the performance of their military duties. The holiday is observed on the last Monday of May. It originated as Decoration Day after the American Civil War in 1868, when the Grand Army of the Republic, an organization of Union veterans, established it as a time for the nation to decorate the graves of the war dead with flowers.
Memorial Day was officially proclaimed on May 5, 1868 by General John Logan, national commander of the Grand Army of the Republic, in his General Order No. 11. It was first observed on May 30, 1868, when flowers were placed on the graves of Union and Confederate soldiers at Arlington National Cemetery.
Memorial Day is traditionally seen as the start of the summer season and is often celebrated with parades, picnics, and barbecues. However, it is important to remember the true meaning of the holiday by participating in activities that honor the military personnel who have made the ultimate sacrifice for their country. This may include visiting cemeteries and memorials, attending memorial services, and flying the U.S. flag at half-staff until noon.