The terracotta army was discovered in northwest China's Shaanxi Province in 1974. It's part of the mausoleum of Qinshihuang – known as China's first emperor. When the life-sized clay figures were unearthed, most of them were damaged or ruined either by natural factors like floods or by human activities. For nearly 50 years, experts have been working to restore the life-sized clay figures. The process of repairing a single piece usually takes months, or even years to complete. Lan Desheng has spe