Unknown Soldier

Photo of, On Armistice Day, pallbearers carry the coffin of the 'Unknown Soldier' of World War I down the steps of the Capitol in Washington DC to the gun carriage which will bear it to Arlington National Cemetery, 11th November 1921. (Photo by Harris & Ewing/Paul Thompson/FPG/Hulton Archive/Getty Images)

On Armistice Day, Nov. 11, in 1921, the coffin holding the unknown soldier of World War I is carried from the U.S. Capitol to a gun carriage that will bear the remains to Arlington National Cemetery. (Harris & Ewing/Paul Thompson/FPG/Hulton Archive/Getty Images)

Harris & Ewing/Paul Thompson/FPG/Hulton Archive/Getty Images