The Terracotta Army is a collection of terracotta sculptures depicting the armies of the first emperor of China. It is a form of funerary art buried with the emperor in 210–209 BCE with the purpose of protecting him in his afterlife. The figures, dating from approximately the late 200s BCE, was described by historian Sima Qian (145-90BCE) but not found until 1974 when they were accidentally discovered by local farmers. The figures vary in height according to their rank, the tallest being the generals. The figures include warriors, chariots and horses. Estimates from 2007 were that the three pits containing the Terracotta Army hold more than 8,000 soldiers, 130 chariots with 520 horses, and 150 cavalry horses, the majority of which remain in situ in the pits. Other, non-military terracotta figures were found in other pits, including officials, acrobats, strongmen, and musicians.