Memorial Day Culture/religion: National observance Date: May 30 Three years after the Civil War ended, on May 5, 1868, the head of an organization of Union veterans — the Grand Army of the Republic (GAR) — established Decoration Day as a time for the nation to decorate the graves of the war dead with flowers. Maj. Gen. John A. Logan declared that Decoration Day should … [Read more...] about Cultural and religious observances – May 30-June 5, 2022