Come and see the Terracotta Army: more than 8, 000 statues were made in the third century BC to     1     of the Chinese Emperor Qinshihuang! Each statue has a different face, leading researchers to believe that each one is a copy of     2    . The statues fill only one part of the emperor’s huge tomb, which still has not     3     . More than 700, 000 people worked for nearly 40 years to build this tomb. However, no one     4     knew about the tomb or the terracotta statues until 1974, when some farmers discovered the tomb while they were     5     .