The Beijing city also has 3000 years of history, the first name found in records as "thistle." BC Beijing in 1045 became thistle, Yan and other lords of the capital of the country; 221 BC Qin Shi Huang to unify China, Beijing has always been a city in northern China and local centers; since AD 938 years, and Beijing has become the capital Liao, Jin, both , buck most of, Ming and Qing States. October 1, 1949 officially designated as the capital of People's Republic of China.