Memorial Day was first called Decoration Day and was created out of the desire for Americans to commemorate the sacrifices made during the American Civil War. More Americans were killed in the Civil War than any other war that Americans have fought in.
Total American Deaths by War
Civil War 625,000
World War II 405,399
World War I 116,516
Vietnam 58,151
Korean War 36,516
Revolutionary War 25,000
War of 1812 20,000
Mexican American War 13,283
War on Terror 6,280
Spanish American War 4,196
During the Civil War Americans were fighting against Americans. Brothers against brothers—cousins against cousins, every casualty and every fatality was an American. The war tore the country apart and threatened the existence of the Republic. Cemeteries throughout the United States pay tribute to the soldiers that fought to preserve the Union, often with special sections where soldiers are buried.
The Civil War is still tearing the nation apart and threatening the Republic.