Miraculously, of the 1,134 individual pieces of glass, 720 are 13th-century originals.
720 of the 1,134 glass pieces were forged in the 13th century.
mnli hypothesis: 720 of the 1,134 glass pieces were forged in the 13th century. premise: Miraculously, of the 1,134 individual pieces of glass, 720 are 13th-century originals.