On March 4, 1921, the United States Congress approved the burial of an unidentified American serviceman from World War I in the plaza of the new Memorial Amphitheater. On November 11, 1921, the unknown soldier brought back from France was interred below a three-level marble tomb. The bottom two levels are six granite sections each and the top at least nine blocks with a rectangular opening in the center of each level through which the unknown remains were placed through the tomb and into the ground below. A stone slab, rather than marble, covers the rectangular opening.
On March 4 1921 the United States Congress approved the burial of an unidentified American serviceman from World War I in the plaza of the new Memorial Amphitheater On November 11 1921 the unknown soldier brought back from France was interred below a three-level marble tomb The bottom two levels are six granite sections each and the top at least nine blocks with a rectangular opening in the center of each level through which the unknown remains were placed through the tomb and into the ground below A stone slab rather than marble covers the rectangular opening