Changchun (长春; Chángchūn; lit. Long Spring) is the capital of Jilin Province and was formerly the capital of the Japanese puppet state of Manchukuo. With a population of more than 6 million, it is one of the major cities in Northeast China (东北; Dōngběi), and is the largest center for China's automotive industry. In 2007, the city hosted the Asian Winter Games.
Changchun in its present form is a new city with only about 200 years of history. But there used to be a city thousands years ago known by different names. The ancient city had changed its name several times, 'Xidu','Helong', 'Tiangang'（Han Dynasty）, 'Shushan'（Tang Dynasty）,'Longzhou'（Liao Dynasty）, and 'Kuancheng'(Jin Dynasty). At last, Kuancheng was destroyed by the Mongolian army, leaving nothing except mention of their conquering in the annals of history . In 1800(Qing Dynasty), Emperor Jiaqing decided to build a town, as one of the junctions on the way from the capital Beijing, to the Changbai Mountains, the holy mountain of the Qing royalty. The Emperor gave the reborn town a name with blessing : 'Changchun'. In some tales, this new name came from a couplet made by the Emperor Qianlong, the father of Jiaqing. This couplet was made when the old emperor on his way to the Changbai Mountains, to praise the spring-like summer of the Changchun area.