Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Xi'an, is the capital of the Shaanxi province in the People's Republic of China and a sub-provincial city. As one of the oldest cities in Chinese history, Xi'an is one of the Four Great Ancient Capitals of China because it has been the capital of some of the most important dynasties in Chinese history, including the Zhou, Qin, Han, the Sui, and Tang dynasties. Xi'an is the eastern terminus of the Silk Road and known as the site of the Terracotta Army, made during the Qin Dynasty.