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Xi'an is the capital of the Shaanxi province, and a sub-provincial city in the People's Republic of China. As one of the oldest cities in China, with more than 3,100 years of history, the city was known as Chang'an before the Ming Dynasty. Xi'an is one of the Four Great Ancient Capitals of China, having held that position under several of the most important dynasties in Chinese history, including Zhou, Qin, Han, Sui, and Tang. Xi'an is the eastern terminus of the Silk Road and home to the Terracotta Army.

Since the 1990s, as part of the economic revival of interior China especially for the central and northwest regions, the city of Xi'an has re-emerged as an important cultural, industrial and educational centre of the central-northwest region, with facilities for research and development, national security and China's space exploration program.