The experimental archaeology serves to answer the question of how Terracotta Army was engineered. When it was engineered can actually be found in China’s oldest literary source, Sima Qian’s historical records, that state that the work on the first emperor’s mausoleum began when he was enthroned in 246 BC and stopped 37 years later when he died, though the film does disclose that no mention of the Terracotta Army is made and that Sima Qian’s writings were a century after the first emperor. However, testing has been done on the charcoal found in the excavated pits as well as the clay in the figures that indicate the warriors were indeed made around 200 BC. The film doesn’t specifically state that radiocarbon dating is how these dates where found, but having the knowledge of absolute dating techniques one could presume that 14C dating was