The term "Xizang" (西藏) is the Mandarin Chinese name for Tibet. It roughly translates to "Western Tsang," referring to the region of Ü-Tsang, a traditional province of Tibet. The term began to be widely used by the Chinese government after the People's Republic of China established control over Tibet in 1951. "Xizang" became more prominent after the official incorporation of Tibet into China as the "Tibet Autonomous Region" in 1965. This term is used in official Chinese documents and propaganda, and reflects the Chinese perspective of Tibet as part of their territory. However, Tibetans themselves continue to use "Bod" (བོད) to refer to Tibet. Historically, the term was likely used earlier in some form, but its popularization is tied closely to the Chinese Communist Party's governance in the region.