Terracotta Army the earliest industrial use of lathes for polishing. The first exhibition of the figures outside of China was held at National Gallery of Victoria (NGV) in Melbourne in 1982. A collection of 120 objects from the mausoleum and 12 terracotta warriors were displayed at the British Museum in London as its special exhibition "The First Emperor: China's Terracotta Army" from 13 September 2007 to April 2008. This exhibition made 2008 the British Museum's most successful year and made the British Museum the United Kingdom's top cultural attraction between 2007 and 2008. The exhibition brought the most visitors to the museum
Terracotta Army to concerns over preservation of its artifacts. For example, after the excavation of the Terracotta Army, the painted surface present on some terracotta figures began to flake and fade. The lacquer covering the paint can curl in fifteen seconds once exposed to Xi'an's dry air and can flake off in just four minutes. Four main pits approximately deep have been excavated. These are located approximately east of the burial mound. The soldiers within were laid out as if to protect the tomb from the east, where the Qin Emperor's conquered states lay. Pit 1, which is long and wide, contains